What percentage of North America is covered by forests? 12% 25% 36% 48%

The Earth is round, as evidenced by consistent lunar eclipse shadows, satellite imagery from space, philosophical and mathematical reasoning, navigational experiences of sailors, and flight path planning. Statements contradictory to Earth's round shape are not supported by the scientific community.

To determine how we know Earth is round, we can refer to multiple lines of evidence that have been observed over centuries. Here are five facts that prove the Earth is round:

Statements such as "the earth is flat," "the earth is at the center of the universe," "the sun moves," "the moon is a goddess," and "lightning is sent by superhuman beings from above" do not align with contemporary scientific understanding and observable evidence. The consensus among scientists is that Earth is an oblate spheroid, confirming that our planet is not flat but round. Educated people in the eastern Mediterranean region, including the Greeks, recognized Earth's spherical shape over 2000 years ago, and modern science continues to support this.

Answer:

the answer is d

Explanation:

i did the quiz on edge.

The Dominican Republic–Central America Free Trade Agreement (CAFTA-DR) is a free trade agreement (legally a treaty under international law, but not under U.S. law). Originally, the agreement encompassed the United States and the Central American countries of Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua, and was called CAFTA. In 2004, the Dominican Republic joined the negotiations, and the agreement was renamed CAFTA-DR.

CAFTA-DR, the North American Free Trade Agreement (NAFTA), and active bilateral free trade agreements such as the Canada-Costa Rica Free Trade Agreementare seen as bloc agreements instead of a Free Trade Area of the Americas (FTAA) agreement. Panama has completed negotiations with the United States for a bilateral free trade agreement known as the Panama–U.S. Trade Promotion Agreement, and has been in effect since October 2012.

The CAFTA-DR constitutes the first free trade agreement between the United States and a small group of developing countries. It was created with the purpose of creating new and better economic opportunities by opening markets, eliminating tariffs, reducing barriers to services, and more. In 2015, it was estimated that the total two-way trade resulted in $53 billion.[1] Nearly all Central American exports to the United States had already been tariff-free thanks to the 1984 Caribbean Basin Initiative.

the layers have different ages with the youngest layers on top

i know this for sure

The region will likely experience more severe hurricanes and droughts as a result of climate change in Central America. The second option, or option "B," is the answer among all the other options.

Transitions in temperatures and weather patterns over a long period of time are referred to as climate change. These changes could be caused by natural processes, such as oscillations in the solar cycle. But since the 1800s, human activities—primarily the combustion of fossil fuels like coal, oil, and gas—have been the major cause of climate change.

By trapping the sun's heat and boosting temperatures, greenhouse gas emissions produced by burning fossil fuels behave as a blanket over the planet.

Methane and carbon dioxide are two examples of greenhouse gases that are contributing to climate change.

Hence, Option (B) is the correct answer.

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Answer:

    The indiscriminate application of reactive forms of N to soil and water can bring several harms to human health and the environment.

    Nitrate is an inorganic compound that has one nitrogen (N) atom and three oxygen atoms (O), and is formed from the action of microorganisms on nitrogen fertilizers, plant debris, manure and other organic waste. Nitrate is usually absorbed by plants, but in some situations it can be carried by rain or irrigation water to the water table and surface water sources (eg rivers, ponds). In rural water sources it comes mainly from nitrogen fertilizers and manure storage and distribution.

    Nitrogen fertilizers escaping to lakes and bays can cause water eutrophication (water nutrient enrichment process). As a result, there is a rapid increase in the algal and cyanobacterial population. The death and decomposition of these microorganisms lead to a reduction in O2 levels, which can lead to the death of fish and crustaceans. Decomposition of these species, in turn, will further reduce O2 levels, leading to more deaths.

    Excess nitrogen fertilizers may also increase the amount of nitric and nitrous oxides in the atmosphere. Nitric oxide can cause acid rain and nitrous oxide participates in two very aggressive processes to the environment. The reaction of nitrous oxide with O2 contributes to the destruction of the ozone layer in the stratosphere (layer of the atmosphere that filters harmful ultraviolet rays to human health) and increases the greenhouse effect (global warming). The average life of nitrous oxide in the atmosphere is over 100 years and each molecule absorbs more than 200 times the radiation of a single CO2 molecule, which is responsible for 2-3% of global warming due to the greenhouse effect.

The widespread misuse of fixed nitrogen in fertilizers can lead to an imbalance in the oxygen cycle by promoting excessive growth of algae and aquatic plants, a process known as eutrophication.

This, in turn, can cause hypoxic conditions or dead zones where there is insufficient oxygen to support marine life.

 Fixed nitrogen is a key nutrient for plant growth and is a primary component of many synthetic fertilizers.

When these fertilizers are used in excess or improperly applied, the nitrogen can run off into nearby water bodies. This runoff carries with it high levels of nitrogen and other nutrients.

 In aquatic environments, this nutrient enrichment, particularly of nitrogen and phosphorus, can stimulate the rapid growth of algae and aquatic plants.

Answer:

Choropleth maps, topographic maps.

Explanation:

The planets orbit the sun along the ecliptic plane, which is aligned with the Earth-Sun plane. The axial tilt of Earth and parallelism are important concepts associated with the ecliptic plane. The orbits of all major planets in the solar system are closely aligned with this plane.

The planets orbit the sun along the ecliptic plane. This plane is essentially the same as the Earth-Sun plane on which the Earth revolves around the Sun. The Earth's axial tilt, at an angle of 23.5 degrees from being perpendicular to this plane, is why we experience different seasons. The axis of Earth remains consistent, pointing toward the star Polaris, as it orbits the Sun, illustrating the concept of parallelism.

All eight major planets orbit the Sun in roughly the same ecliptic plane, although the orbits of dwarf planets such as Pluto and Eris are inclined to greater angles. According to La Place's discovery in 1784, if from all the planets perpendiculars are drawn to the so-called invariable plane, which is slightly inclined to the ecliptic, the sum of the products of each planet's mass and the area its projected radius vector describes upon this plane in a unit of time, will be maximum.

The ecliptic plane can also be viewed as the path across the sky taken by celestial bodies, including the Sun and the Moon, from the perspective of Earth. The celestial extension of this plane is what we observe as the path of the Sun - the ecliptic - across the skies. The Earth's orbit expanded in the same plane would coincide with the ecliptic, and the inclination of Earth's orbit to the celestial equator gives us the obliquity of the ecliptic, a significant factor in understanding the mechanics of the solar system.

Answer:

extractionn!!!!!

Explanation:

Final answer:

The role of stratification to civil engineering involves analyzing the different layers of soil or rock in a construction site to determine stability and suitability for construction projects. This information helps civil engineers make informed decisions about the design, construction, and maintenance of infrastructure projects.

Explanation:

The role of stratification to civil engineering can be understood by looking at the concept of social stratification. Just as society is divided into different layers based on socioeconomic status, stratification in civil engineering refers to the different levels or layers of soil or rock in a construction site. Civil engineers analyze the stratification of the ground to determine its stability, composition, and suitability for construction projects such as buildings, roads, and bridges.

For example, during the planning phase of a building project, civil engineers may investigate the stratification of the site to assess the presence of different soil layers, including bedrock, clay, or sand. This information is crucial in determining the type of foundation and support structures needed for the building to ensure its stability and safety.

By understanding the stratification of the ground, civil engineers can make informed decisions about the design, construction, and maintenance of infrastructure projects, taking into account factors such as soil composition, water table levels, and potential risks such as landslides or sinkholes.

most pleasant is correct

Final answer:

Since the Christmas Day tsunami, measures taken include the creation of tsunami warning systems, tsunami run-up maps, and the implementation of strong building codes and public education.

Explanation:

Since the Christmas Day tsunami, several measures have been taken to mitigate the impacts of earthquakes, volcanoes, and tsunamis. These measures include:

Final answer:

The claim that Babylonians first used a metal-tipped plow is incorrect; it was the Sumerians who were among the earliest to innovate in agricultural technology, including the use of metal-tipped plows, around 5000 BCE.

Explanation:

The statement that 'Babylonians were the first to use a plow with a metal tip' is false. Although the Babylonians were an innovative civilization, the first use of metal-tipped plows is not attributed to them. It was the Sumerians, around 5000 BCE, who were among the earliest to make significant agricultural advances, including the use of plows. The introduction of bronze plows in regions like Egypt after receiving bronze technology from the Near East and Eastern Mediterranean before 3000 BCE greatly increased agricultural efficiency due to bronze being much harder than previous farming materials.

The Assyrians later played a significant role in the history of metal use, being the first to mass-produce iron weapons, but their advancements were in the military sphere rather than in the development of the plow. The Sumerians, known for their technological innovations, were the ones who pioneered the production of bronze, thus commencing the Bronze Age in Mesopotamia, and they were instrumental in the development of early plow technology.

The subduction zone is the place where two lithospheric plates come together, one riding over the other. Most volcanoes on land occur parallel to and inland from the boundary between the two plates.

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Final answer:

To find the exact location of a plate boundary in a subduction zone on a map, search for the trench and analyze surrounding earthquake patterns. Graphing earthquake depth and distance from the trench further clarifies the boundary's properties and illustrates variations in the subduction process along the zone.

Explanation:

To determine the exact location of a plate boundary in a subduction zone using a map, one should look for a specific feature: the trench. A trench marks where one tectonic plate is being forced beneath another, initiating the subduction process. The accompanying seismic activity can also provide clues. Earthquake foci (or hypocenters) typically align along the boundary between the subducting and the overriding plate, illustrating the subduction angle. By plotting the distance of these earthquakes from the trench and their depth, a cross-section of the subduction zone can be drawn. This depiction not only identifies the plate boundary but also highlights the subduction angle, which varies across different segments of the zone.

This may be late; but for anyone looking for an answer to this question, it's "the total cost of the gas before it was split among the friends".

The answer is: establishing naval bases there.

The baltic nations refers to the nations in Northern Europe that bordered by the Baltic Sea (such as  Estonia, Latvia, and Lithuania.).

These regions is really close to the western Europe which notoriously formed an alliance with united states. By establishing naval bases on the baltic nations, soviet union hope to be able to stop the upcoming attacks to their territories because all attacks from western Europe will had to pass through these Baltic regions.

Answer:

I believe the answer is C

Explanation:

less developed countries will have supply and demand, sure they may be small, and less developed then the rest of the world, but that hardly matters as they may not be able to produce essential items and food that other countries have.