Final answer:
The independent variable in the plant growth experiment is light color. Light color is the variable being changed to test its effect on plant growth with blue light likely promoting the most growth, followed by red, and then green, due to the absorption properties of chlorophyll.
Explanation:
The independent variable in this experiment is B. light color. This is the variable that the student is intentionally changing across the three plants to test its effect on plant growth. The other options, such as pot size, plant type, and amount of water are kept constant to ensure that they do not affect the outcome of the experiment and can be considered as controlled variables.
Considering the effects of different light colors on plant growth, particularly concerning chlorophyll a and chlorophyll b, which are the two main types of chlorophyll used in photosynthesis, the predicted order of the plants from most growth to least growth would be: blue light, red light, and finally green light. This is because chlorophyll absorbs light most efficiently in the blue and red regions of the spectrum and least efficiently in the green region.
5. When the sea floor spreads apart, volcanoes and ridges are formed
because -
a. sediments are deposited where the floor spreads, building ridges
b. as the plates pull apart, magma moves to the surface, building ridges
c. ocean water pushes down on the surrounding sea floor, pushing up ridges
d. underwater earthquakes lift the sea floor into long ridges
B. as the plates pull apart, magma moves to the surface, building ridges
The correct option is, (B) as the plates pull apart, magma moves to the surface, building ridges.
When the sea floor spreads apart volcanoes and ridges are formed because?Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.What happens during the process of sea floor spreading?Sea-floor spreading is what happens at the mid-oceanic ridge where a divergent boundary is causing two plates to move away from one another resulting in spreading of the sea floor. As the plates move apart, new material wells up and cools onto the edge of the plates.Which of the following is formed when seafloor spread?The phenomenon is known today as plate tectonics. In locations where two plates move apart, at mid-ocean ridges, new seafloor is continually formed during seafloor spreading.What are seafloor structures?Features of the ocean floor include the continental shelf and slope, abyssal plain, trenches, seamounts, and the mid-ocean ridge. The ocean floor is rich in resources. Living things on the ocean floor are used for food or medicines.Learn more about sea floor spreads here:
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What is the main reason for the acquisition of Southeast Asian colonies by European nations?
spices are the main reason for acquisition of southeast asian colonies by european nation
The primary motive for European colonization in Southeast Asia was economic gain, as European nations aimed to expand their markets and access valuable resources. They followed the mercantilist theory to increase their wealth through trade surpluses and the acquisition of gold and silver.
The main reason for the acquisition of Southeast Asian colonies by European nations was primarily economic. European powers sought to expand their markets and acquire raw materials overseas.
Economic Gain: European nations were motivated by the desire to grow their wealth through the acquisition of valuable resources such as spices, coffee, tin, and gold.Market Expansion: Establishing colonies allowed European countries to create new markets for their manufactured goods.Mercantilism: This economic policy aimed at accumulating wealth through trade surpluses and maximizing the amount of gold and silver held by a country.Control of Trade Routes: European powers aimed to dominate key trade routes in the region, ensuring the flow of goods to and from Europe.The process of colonization radically transformed Southeast Asia's economic and political landscape, laying a foundation that continues to influence the region's geography today.
what type of diffusion describes how the number of people that possesses a particular culture trait increases?
relocation diffusion
expansion diffusion contagios diffusion
hierarchical diffusion
Answer:
Contagious diffusion
Explanation:
Answer:
contagious diffusion
Explanation:
It's the widespread and rapid diffusion process where the population ideas are diffused easily and the characteristic of the people can quickly spread without being actually relocated. And the number of people that culture posses that trait increase in number.What does the "iron curtain" refer to?
A. The promise to help Nations struggling against communist movements
B. The border between the Soviet satellite States and Western Europe
C. The 46-year rivalry between the United States and the Soviet Union
D. The independent nations under the control of a more powerful nation
Answer:B:the border between the soviet satellite states and western Europe
Explanation: GradPoint
The 'iron curtain' refers to the metaphorical barrier that separated the Communist-controlled East and the democratic West during the Cold War. This term famously used by Winston Churchill, signifies the border between the Soviet satellite states and Western Europe.
Explanation:The term 'iron curtain' refers to the ideological, political, and physical boundary that divided Europe into two distinct regions from the end of World War II in 1945 until the end of the Cold War in 1991.
This term was most famously used by British Prime Minister Winston Churchill in a speech in 1946. The 'iron curtain' essentially divided the countries that were members of the North Atlantic Treaty Organization (NATO) and those that fell under the influence of the Soviet Union.
Therefore, the 'iron curtain' refers to the border between the Soviet satellite States and Western Europe, as your second option suggests. These 'satellite states' were essentially Eastern European countries that were under the influence, though not direct control, of the Soviet Union.
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How do magnetic stripes show the history of earths magnetic field?
In the process of crystallization of rocks from the lava at, the ridges form the magnetic stripes that keep a store of the history of the magnetic field of the Earth.
What is the magnetic field of the Earth?The field of magnetic induction, the extension of which ranges from the interior into the space, and a stream of charged particles emanate from the Sun's solar energy is known as the magnetic field of the Earth.
Hence, the significance of the magnetic field of the earth is aforementioned.
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Using the map, which term BEST explains the spread of many religions throughout Southeast Asia? A) transfusions B) colonization c) culture diffusion D) independent innovation
C) culture diffusion. Based on the premise of cultures.
How was the earth made?
Answer:
The Earth is formed from space gas, dust, and other galactic materials. Like the other planets in the Solar System, the Earth was created when material that orbited the early Sun began to accumulate into a spherical body.
Explanation: Hope this help
The history of yosemite
Answer: Muir and Johnson lobbied Congress for the Act that created Yosemite National Park on October 1, 1890.
Explanation: Muir and Johnson lobbied Congress for the Act that created Yosemite National Park on October 1, 1890. The State of California, however, retained control of Yosemite Valley and Mariposa Grove. Muir also helped persuade local officials to virtually eliminate grazing from the Yosemite high country.
Which of the following measurements is used to measure astronomical bodies?
A. Speed of light
B. Speed of sound
C. Speed of spacecraft
D. Speed of ration of Earth
Answer:
We usually use speed of light to measure the distance between two astronomical bodies, because astronomical bodies are very far from each other and we use the light year as the unit of distance for large distances. One light year is the distance covered by light in one year,so the speed of light is the correct option here.
Answer: A. Speed of light.
Have you ever heard a scientist or read an article that said 'x is _ light years away"?
Many people working in the astronomy feild use this term!
Which is a plan for the future of space exploration?
A) build a space station
B) astronauts visiting Mars <- ANSWER
C) astronauts orbiting Earth
D) build a space observatory
The plan for the future of space exploration is astronauts visiting Mars. The correct option is B.
What is space exploration?Space exploration is the study of the reaches of the universe beyond Earth's atmosphere using crewed and uncrewed spacecraft.
The use of the information gained to advance knowledge of the cosmos and benefit humanity.
Thus, the correct option is B) astronauts visiting Mars.
Learn more about space exploration
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which can be measured in inches of mercury? A: hail B: lighting C: air pressure Temperature
Inches of mercury is a unit used to measure air pressure, specifically measured using a barometer with mercury. Therefore, the correct option is C
Explanation:Inches of mercury is a unit used to measure air pressure. A barometer is a device that measures atmospheric pressure, and a mercury barometer specifically uses mercury to measure this pressure. The height of the column of mercury in the barometer can be measured in inches, indicating the air pressure.
Air pressure can be measured in inches of mercury using a mercury barometer.
Explanation:Inches of mercury is a unit commonly used to measure atmospheric pressure. A barometer, such as a mercury barometer, measures atmospheric pressure by the height of a column of mercury it contains.
The pressure due to the weight of the mercury, hpg, equals atmospheric pressure. When atmospheric pressure varies, the height of the mercury in the barometer rises or falls, providing important information to weather forecasters.
Thus, air pressure is measured in inches of mercury using a mercury barometer.
What is the main religious text of the Muslims?
The Torah
The Bible
The Quran
The Old Testament
Answer:
The Quran
Explanation:
Answer: The Quran
Thanks
10. A geologist is collecting data from a sample of rock. Which of the following is an example of
qualitative, rather than quantitative, data?
O A. A description of the rock's coloring
O B. The percentages of various minerals in the rock
O C. The weight of the rock
O D. A measurement of rock's grain size
Answer:
The answer is A
Explanation:
A description of the rocks coloring is an example of qualitative, rather than quantitative, data.
I hope that helped :)
Answer:
A "description of the rock's coloring" is an example of "qualitative", rather than "quantitative data".
Explanation:
Data can be categorized as quantitative data when the data exhibits information that is countable or measurable using certain units or numbers. On the other hand, the data can be called qualitative when it describes characteristics that are not measurable and can only be illustrated in non-statistical form. The size of the rock sample, the percentage of minerals in it, its grain size are all measurable, while the coloring is not."The Indian Ocean facilitates connections between the eastern coast of Africa and:
The Indian Ocean facilitated trade connections between the eastern coast of Africa and regions like the Middle East, India, Southeast Asia, and China through Indian Ocean trade routes. Trade goods including ivory, spices, and gold were exchanged for foreign luxuries such as silks and glassware, while the Swahili city-states served as critical hubs in this network.
Explanation:The Indian Ocean played a crucial role in facilitating connections between the eastern coast of Africa and various regions, including the Middle East, China, India, and Southeast Asia. Through the Indian Ocean trade network, the East African city-states became bustling hubs of commerce and cultural exchange. Integrating into the maritime trade network, the East African Aksumite economy joined a wider web of trade routes. With the advent of Islamized Arab traders from the seventh century, these connections intensified, with the East African Swahili culture flourishing along the coastline. Linkages were facilitated through the knowledge of monsoon wind patterns, enabling maritime navigation, and the development of trade-based societies along the great arc of land surrounding the Indian Ocean basin.
The Swahili city-states used their geographical advantage to boost trade by leveraging the predictable seasonal winds. Goods like ivory, spices, gold, and porcelain from East Africa, as well as enslaved Africans, were exchanged for commodities from afar, such as silks, glassware, and tools. The shared religion of Islam and the Swahili language united the people of these city-states, promoting trade and cultural ties with distant lands and making commodities from distant civilizations available to people on three continents.
Which statement accurately describes life in russian cities
Answer:Housing shortages cause crowded living conditions
Explanation:
How many of the word’s 20 largest cities are located in Western Europe
Answer: The answer is 4.
Explanation:
Madrid, SpainRome, ItalyBerlin, GermanyAthens, GreeceI hope that this helps! :D
What holds tidal water before releasing it through a turbine?
tank
barrage
boat
dam
I believe your answer is barrage.
Apologies if this is incorrect.
ANSWER:
Barrage holds tidal water before releasing it through a turbine.
EXPLANATION:
Barrage can be defined as the kind of a low head; it works for diversion in which the dam contains large number of gates which are usually used to control the flow of the water in the dam. So it can be opened and closed according to the requirement. By the process it also helps in controlling the flow of the river water to get into the dam.please please help me out.....please
Answer:
B. A P wave can travel through liquids
Explanation:
Answer:
A
Explanation:
P-waves are the fastest waves created by an earthquake. They travel through the Earth's interior and can pass through both solid and molten rock. They shake the ground back and forth – like a Slinky – in their travel direction, but do little damage as they only move buildings up and down.
Which supercontinent forms the core of North America?
A. Gondwana
B. Pannotia
C. Laurentia
D. Rodinia
Answer:
C. Laurentia
Explanation:
Laurentia was correct
Explanation:
PLZ HELP 20 POINTS Research an area in the world that suffers with water deficit. How does this impact the people? What can be done to solve the problems? please keep the answer simple
Answer:
The world water deficit is a recent phenomenon. It is a product of the tripling of water demand over the last half-century, which was accelerated by the rapid worldwide spread of powerful diesel and electrically driven pumps.
Unlike burning forests or invading sand dunes, falling water tables are often discovered only when wells go dry.
We are currently consuming water that belongs to future generations. In some countries, the fall of water tables is dramatic.
In Yemen, a country of 19 million people, the water table under most of the country is falling by roughly 2 meters a year — as water use far exceeds the sustainable yield of aquifers.
World Bank official Christopher Ward observes that “groundwater is being mined at such a rate that parts of the rural economy could disappear within a generation.”
In the basin where Yemen's capital, Sana’a, is located — and where the water table is falling 6 meters (nearly 20 feet) per year — the aquifer will be depleted by the end of this decade.
In the search for water, the Yemeni government has drilled test wells in the basin that are 2 kilometers (1.2 miles) deep.
Those are depths normally associated with the oil industry, but even they have failed to find water.
Yemen must soon decide whether to bring water to Sana’a, possibly from coastal desalting plants — or to relocate the capital.
Iran, a country of 70 million people, is facing an acute shortage of water. Under the agriculturally rich Chenaran Plain in northeastern Iran, the water table was falling by 2.8 meters a year in the late 1990s.
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PLEASE ANSWER ASAP!! Do u get Bitesize in America, China, India or Australia?
America. its america because in costco it lets you have samples
Answer: I really don’t think so angel x
Explanation: Im live in the UK so i have access to bitesize and the only options for when you pick a country (for the grades/years) are England, Scotland, Whales and Northern Ireland.
If you want, you can message me what you want to learn on bitesize and can screenshot it and send you the page so you can revise it. ❤️
(maybe i could screenshot it and post it as a question on this website???)
Faster methods of transportation and more sophisticated methods of communication, such as the Internet, have had the greatest impact on the recent trend of __________. A. increased globalization B. decreased globalization C. increased nuclear proliferation D. decreased nuclear proliferation
Answer:
Letter "A" is correct.
Explanation:
Globalization is the way how people get together and integrate around the world and the way things move worldwide. The reasons globalization increases so fast are the faster methods of transportations that helps people and things be anywhere, and the internet that connects people to the world in seconds.
The answer is: A
The increase in globalization caused by successful long distance communication technology, such as cell phones, email, discord, etc., as well as efficient transportation methods allows for easier communication between both governments and civilians causing an increase in globalization.
how many great lakes are there?
Answer:
5
Explanation:
Michigan, Huron, Ontario, Superior, and Erie
Answer:
There are a total of 5 great lakes which are:
Superior, Huron, Michigan, Ontario and Erie!
Hope this helps!!!!
What is the method of determining distance and elevation using instruments and geometry?
Answer:
surveying
is the answer hope this hel thank you so much
Answer:
B. surveying
Explanation:
during the earliest years of agricultural development, ___ allowed farms to be farther from rivers.
Answer:Irrigation.
Explanation:
plzz give brainliset!!
____.mountains occur at normal faults from the footwall being thrust upward along the
hanging wall.
A.Normal fault
B.Folded
C.Fault-block
Answer:
a. normal fault
Explanation:
because of the type of faults
Fault-block mountains are formed due to the movement along a normal fault where the hanging wall moves downward relative to the footwall, often at divergent plate boundaries. C is correct.
The correct answer to the question '____.mountains occur at normal faults from the footwall being thrust upward along the hanging wall.' is C.Fault-block. Fault-block mountains are formed by the motion along a normal fault. In a normal fault, the hanging wall moves downward relative to the footwall as a result of tensional forces in the Earth's crust, often occurring at divergent plate boundaries.
An example of this would be the Teton Mountains, which have arisen due to the normal faulting process. This type of movement contrasts with reverse and thrust faults, where the hanging wall moves upwards relative to the footwall due to compressional forces.
The balance of gravity pulling outward at the same time pressure is pushing in is known as gravitational equilibrium. True or false?
Answer:
True
Explanation:
The gravitational equilibrium basically means that the gravitational pull is balanced by the pressure that is pushing outwards. This basically means that any material that would find itself in a gravitational equilibrium will neither fall downward, nor be pushed upward, as the two forces are balancing each other. On the other hand, this occurrence actually creates an enormous amount of pressure at the point of the gravitational equilibrium, so not many things can sustain that pressure without being disintegrated.
Answer:
The answer is false!
which of the following best describes a plane ?
A plane is the two-dimensional analogue of a point
The movement called Impressionism was developed by French _____.
The movement called Impressionism was developed by Claude Monet
Answer:
artists
Explanation:
claude monet was a artist
which of the following cities has a climate characterized by continentality
Answer:
3) Bismarck, North Dakota
Explanation:
The city that has a climate characterized by confidentiality is Bismarck, North Dakota. This city is relatively close to the center of the US, thus it is far away from the large bodies of water. It is in the mid-latitudes, so it doesn't have too much of an influence from the Arctic or from the tropics. Bismarck has just about enough rainfall so that it is not semi-arid, though it is on the borderline. The summers tend to be dry and hot, while the winters tend to be very cold and snowy.