Which of the following is a subsurface event that takes place during the rock cycle? (6 points)


Cementing

Erosion

Melting

Weathering

71% of the earth is water and the 29% is continents and islands.

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The article is correct because although vacuoles are found in both plant and animal cells, they are larger in plant cells than in animal cells.

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Vacuoles are found in both plant and animal cells, but they are larger in plant cells than in animal cells.

The article is correct because although vacuoles are found in both plant and animal cells, they are larger in plant cells than in animal cells.

Plant cells have a large central vacuole that holds a mixture of water, nutrients, and wastes. A plant cell's vacuole can make up 90% of the cell's volume. In animal cells, vacuoles are much smaller.

In addition to containing most of the organelles found in animal cells, plant cells also have a cell wall, a large central vacuole, and plastids. These three features are not found in animal cells.

mass - hope this helps!!

The answer is Mass☺️.

In order to measure the zone of inhibition we measure the diameter of the zone of inhibition including the diameter of the disc.

A Zone of Inhibition Test, also called a Kirby-Bauer Test, is a qualitative method used clinically to measure antibiotic resistance and industrially to test the ability of solids and textiles to inhibit microbial growth. The zone is measured by the diameter across the zone and you do not consider the disc at all. Zone is measured from edge to edge of the clear area , which means disc will be inside and included in the measurement.

The substances that influence the rate of reaction are usually one or more of the reactants, but can occasionally include products. ... The rate law is experimentally determined and can be used to predict the relationship between the rate of a reaction and the concentrations of reactants.

The rate law uses the molar concentrations of reactants to determine the reaction rate.

A catalyst is a substance that allows the chemical reaction to occur at a faster rate or under different conditions (e.g. at a lower temperature) without being affected by the reaction.

The substances that influence the rate of reaction are usually one or more of the reactants, but can occasionally include products.

The rate law is experimentally determined and can be used to predict the relationship between the rate of a reaction and the concentrations of reactants.

The rate law uses the molar concentrations of reactants to determine the reaction rate.

Typically, increased concentrations of reactants increase the speed of the reaction, because there are more molecules colliding and reacting with each other.

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Answer:

34.33 %.

Explanation:

W% = [(W of solute NaF)/(W of solution)] x 100.

W of solute NaF = 65.4 g.

W of solution = W of solute NaF + W of water = 65.4 g + 125.1 g = 190.5 g.

∴ W% = [(W of solute NaF)/(W of solution)] x 100 = [(65.4 g)/(190.5 g)] x 100 = 34.33 %.

The percent concentration of the sodium fluoride solution is approximately [tex]\( 34.32 \% \)[/tex].

To find the percent concentration of the sodium fluoride solution, we first need to calculate the total mass of the solution, which is the sum of the mass of sodium fluoride [tex](\( \text{NaF} \))[/tex] and the mass of water [tex](\( \text{H}_2\text{O} \))[/tex].

Total mass of the solution [tex]\( = \text{mass of NaF} + \text{mass of water} \)[/tex]

Given:

Mass of sodium fluoride [tex](\( \text{NaF} \)) \( = 65.4 \) grams[/tex]

Mass of water [tex]\( = 125.1 \) grams[/tex]

[tex]Total mass of the solution \( = 65.4 \, \text{g} + 125.1 \, \text{g} = 190.5 \, \text{g} \)[/tex]

Next, to find the percent concentration of sodium fluoride in the solution, we'll use the following formula:

[tex]\[ \text{Percent concentration} = \frac{\text{Mass of solute}}{\text{Mass of solution}} \times 100 \][/tex]

where:

Mass of solute is the mass of sodium fluoride

Mass of solution is the total mass of the solution

Substituting the given values:

[tex]\[ \text{Percent concentration} = \frac{65.4 \, \text{g}}{190.5 \, \text{g}} \times 100 \][/tex]

[tex]\[ \text{Percent concentration} = \frac{65.4}{190.5} \times 100 \][/tex]

[tex]\[ \text{Percent concentration} = 0.3432 \times 100 \][/tex]

[tex]\[ \text{Percent concentration} \approx 34.32 \% \][/tex]

The product of molarity and volume of any substance at a fixed temperature is constant. Therefore comparing two portions of different molarity, we can say that, M₁V₁=M₂V₂

M represents the molarity, V represents volume of the solution.

M₁ in the question is 8.8M

M₂ is 2.2M

V₁=?

V₂= 175

therefore,

8.8ₓV₁= 2.2ₓ175ml

V₁=(2.2ₓ175ml)/8.8

=43.75 ml

You need 43.75 mL of an 8.8M CaBr2 solution to prepare 175 mL of a 2.2M solution. This is achieved using the molarity formula, M1V1 = M2V2, which helps us to relate the initial and final concentrations and volumes of the solution.

To solve this problem, we need to use the concept of molarity (M), which is a measure of the concentration of a solute in a solution. The formula for molarity is M1V1 = M2V2, where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.

In this case, we want to find V1, so we rearrange the formula to: V1 = (M2V2) / M1

Substituting the given values, we get: V1 = (2.2M * 175 mL) / 8.8M = 43.75 mL.

Therefore, you would need 43.75 milliliters of an 8.8M CaBr2 solution to prepare 175 mL of a 2.2M solution.

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The answer would have to be “move fast and far apart.”

I really hope this helps you.

Answer:

Scientists observe the layers for evidence of similar rock types and fossil formations to determine the age of landforms. If they find the same fossil in two different locations, scientists may conclude that those fossils are most likely from the same time period.

Explanation:

Final answer:

Scientists use geologic time involving relative and absolute dating techniques to compare the age of fossils. Biotic components of an ecosystem are the living parts, while abiotic parts are non-living. The geologic time scale and geological principles help in understanding Earth's history and the development of life.

Explanation:

Scientists compare the age of two fossils by using geologic time, which involves both relative dating and absolute dating techniques. Relative dating places fossils and rocks in chronological order without determining their exact age. Scientists use index fossils and the principle of superposition to determine a relative age. Absolute dating, on the other hand, provides an approximate numerical age using radiometric techniques, such as measuring the decay of radioactive isotopes. However, the term "carbon dating" is somewhat of a misnomer when aging rocks and fossils, as this method is primarily used for dating items that are less than 50,000 years old, and not for older geologic materials.
In any ecosystem, the biotic components refer to the living parts, such as animals, plants, and microbes, while abiotic components include non-living factors like water, rocks, and climate. The interaction between these parts is crucial to the functioning of an ecosystem.

A .gamma

Because composed of photons, which have neither mass nor electric charge and, as a result, penetrates much further through matter than either alpha or beta radiation.

A type of radiation that has neither mass nor charge is called: A) gamma.

In Science, there are four (4) main types of radiation and these include the following:

Gamma radiation can be defined as a form of electromagnetic radiation that is produced from the radioactive decay (disintegration) of the unstable nucleus of an atom.

Unlike alpha and beta particles, gamma radiation is a weightless packet of energy because it neither has mass nor charge.

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In a sample of MgCl2, there are 6 moles of chlorine for every 3 moles of MgCl2. Two moles of H2O are required to produce 1 mole of O2. One mole of H2 gas contains 2 moles of hydrogen atoms, and there are 6.02 x 10^23 atoms or molecules in a mole.

To answer your questions about moles and stoichiometry:

Answer:

Collecting residue samples.

Explanation:

All the other given options are equally important on the exploration of a bomb aftermath.

The most important task is the collection of residue samples since it needs highly skilled personel to collect accurate samples for later on analysis.

Identification of meaningful collection areas is a technical skill that requires the most experienced team memebers.

Answer: Collecting residue samples from the scene.

Explanation:

Collection of the residues after the explosion will be the most important task that is required to be done immediately this is because of the fact that the explosive residues at the site of the crater may consists of residues which may contain both volatile and non-volatile substances which are likely to be blown away soon after explosion. Thus if not collected in proper time the type of explosive used for explosion will remain undetected.      

Answer:  Because of the property known as Catenation.

Explanation:  Catenation is the property of making molecules by self linkage.

This is the property mostly exhibited by the carbon. Thus it is famous for creating large molecules or large chains of carbon and hydrogen atoms.

This property is also exhibited sulfur of the chalcogen family.

The structure of a carbon atom enables it to form large molecules as it can form four chemical bonds to the other atoms as well. It usually forms covalent bond by sharing of the electrons.

true on e2020**********

2. It can travel in a vacuum.

This is true!

the primary consumer in those photos would be C

Answer:

c

Explanation:

a is not a primary consumer

b is also not primary consumer

c is a primary consumer and,

d is not so,

c is a primary consumer

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Answer: The correct answer is "Mechanical waves can apply pressure to and push on objects in their path".

Explanation:

Mechanical wave is wave in which there is an oscillation of the wave. The energy is transferred through a medium. Mechanical waves can apply pressure to and push on their path. Only the energy is transferred not the matter.

Mechanical waves are of three types: Transverse wave, Longitudinal wave and Surface wave. The examples of the mechanical wave are sound wave and water wave.

Sound is a pressure disturbance which travels through a medium. It consists of compression and rarefaction.

The mechanical waves need a medium for their propagation. They travel faster in denser medium.

Therefore, the correct option is (B).

Answer:

Mechanical waves can apply pressure to and push on objects in their path

Explanation:

"Deer graze through the grassland". (3)

The sun emits solar rays that reach earth

Answer: In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus. Because the cell is very small, and because organisms have many DNA molecules per cell, each DNA molecule must be tightly packaged. This packaged form of the DNA is called a chromosome

Explanation:

now i honestly do not know if this answer is correct, i looked all over the internet for answers and this is what i got. i hope it helps.

The correct answer is - b. If available resources decrease, then competition will increase.

All living organisms in an ecosystem are specialized in accordance to the living conditions and the food sources available. If a given ecosystem experiences prolonged drought, than the resources will decrease. With a decrease in resources, the living organisms will find themselves in a situation of scarcity. That will lead to a much increased competition, with both organisms of different species, and members of the same species. That will most likely lead to a situation where only the fittest will survive, while the weaker members of the species will probably die in that period of prolonged drought as they will not be able to get the resources they need to survive.

Answer:

B because animals would fight over food and water more to survive

Explanation:

Answer:

b. Absolute

Explanation:

Absolute dating is a method used by scientists to determine the age of objects by evaluating the properties of its atoms, it is also called chronological and calendar dating, since absolute refers to a certainity that the scientists can not warantee when it comes to how long has an object has bein on a certain place.

Absolute dating uses the decay properties of isotopes in rocks to find their exact ages. It depends on radiometric methods and half-lives of isotopes, unlike relative dating, which only arranges rocks in age order. Option b is correct.

The correct answer to the question is  Absolute dating,' which utilizes the properties of atoms within rocks and other objects to accurately determine their ages. Absolute dating methods are based on radiometric dating, which involves measuring the rate of decay of unstable isotopes, such as uranium or argon, to estimate the precise age of rocks and fossils.

Radiometric dating relies on the concept of a half-life, which is defined as the time required for half of a sample of a radioactive isotope to decay into its daughter isotope. Using the known half-lives of various isotopes, scientists can calculate the age of a rock or fossil with precision. Unlike relative dating, which only provides a sequence or comparison of ages, absolute dating assigns a specific numerical age.

For instance, while relative dating can tell us that one layer of rock is older than another, absolute dating can establish that a rock is 150 million years old. This method is paramount in geology for constructing accurate timelines of Earth's history.

The answer is having hooved feet.

Make milk is maybe h im ont know sir

as water is cooled it's density increases until about 4 c then it decreases

Answer:

As water is cooled its density increases 4 degrees Celsius is reached

Explanation:

Explanation:

The Law of Conservation of Mass is demonstrated in photosynthesis and cellular respiration as no matter is created or destroyed during these processes, maintaining a consistent atomic mass throughout.

In photosynthesis and cellular respiration, the Law of Conservation of Mass is upheld as no matter is created or destroyed, maintaining consistent atomic mass throughout these chemical reactions. For photosynthesis, for example, six carbon dioxide molecules combine with six water molecules to produce one glucose molecule and six oxygen molecules. Similarly, in cellular respiration, glucose is broken down into carbon dioxide and water, returning these molecules to the environment. Thus, the number of atoms of each element in the reactants equals the number of atoms in the products, supporting the Law of Conservation of Mass.

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Mg^2+ + 2Cl^- -> MgCl2

The net ionic equation for the reaction of magnesium hydroxide, Mg(OH)2, and hydrochloric acid, HCl, is: Mg(OH)2(s) + 2H+(aq) → Mg2+(aq) + 2H2O(l). It shows the chemical species directly involved in the reaction, excluding spectator ions.

The net ionic equation for the reaction of magnesium hydroxide and hydrochloric acid is slightly different to total ionic equations, as it eliminates those ions which do not partake in the reaction - these are known as the 'spectator ions'. The reaction of magnesium hydroxide, Mg(OH)2 and hydrochloric acid, HCl can be outlined as follows:

In the net ionic equation, the spectator ion Cl- is removed. Net ionic equations therefore illustrate only the chemical species that are directly involved in the reaction process itself.

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Answer:

Human ears can hear sound waves that vibrate in the range from about 20 times a second (a deep rumbling noise) to about 20,000 times a second (a high-pitched whistling). (Children can generally hear higher-pitched sounds than their parents, because our ability to hear high frequencies gets worse as we get older.) Speaking more scientifically, we could say that the sounds we can perceive have a frequency ranging from 20–20,000 hertz (Hz). A hertz is a measurement of how often something vibrates and 1 Hz is equal to one vibration each second. The human voice makes sounds ranging from a few hundred hertz to a few thousand hertz.

Suppose you could somehow hit a drum-skin so often that it vibrated more than 20,000 times per second. You might be able to see the skin vibrating (just), but you certainly couldn't hear it. No matter how hard you hit the drum, you wouldn't hear a sound. The drum would still be transmitting sound waves, but your ears wouldn't be able to recognize them. Bats, dogs, dolphins, and moths might well hear them, however. Sounds this like, with frequencies beyond the range of human hearing, are examples of ultrasound.

Infrasonics, vibrational or stress waves in elastic media, having a frequency below those of sound waves that can be detected by the human ear—i.e., below 20 hertz. The range of frequencies extends down to geologic vibrations that complete one cycle in 100 seconds or longer.

Empirical formula is nh3

The question seems to involve a composition error, resembling a compound formation reaction. The correct empirical formula for N3H9 after simplification would be NH3, which is the formula for ammonia. The empirical formula represents the simplest ratio of elements in a compound.

The question refers to finding the empirical formula of a compound with an initial composition of N3H9. The empirical formula represents the simplest whole-number ratio of atoms in a compound. However, the given composition does not match any common or simple empirical formula, and seems like a simplification error occurred.

We can compare the process to another compound, naphthalene, where a 1.25:1 ratio of moles of carbon to hydrogen leads to an empirical formula of C5H4 once the subscripts are multiplied by 4 to achieve whole numbers. For the compound ammonia (NH3), the balanced equation N2 (g) + 3H2 (g) → 2NH3 shows the correct stoichiometry of nitrogen to hydrogen.

If the composition N3H9 were correct, dividing the subscripts by the greatest common divisor, which is 3, would yield NH3, the formula for ammonia. Thus, the empirical formula for this case would be NH3, and the equation representing the combination process would be: N2 + 3H2 → 2NH3. The empirical formula mass for NH3 would be the sum of the atomic masses of nitrogen and hydrogen.

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I believe it is D because being resistant to diseases could have helped not spread diseases among one another and the babies would have had the same trait to keep them alive.

I hope this has helped

Body resistant to diseased caused by mosquito bites.

TOOK FLVS TEST AND GOT IT RIGHT

Well, for one thing, they ensure that a scientist can't claim a certain result, which might be biased and thus inaccurate, because he or she is being paid by, say, big business interests. For another, they ensure that medicines or treatments can't be made available to the public without thorough testing, replication, and peer review.

Explanation:

ethical guidelines are made to be implemented together to make any type of ethical judgment.

ethical guidelines make science safer because