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egoroff_w [7]
3 years ago
14

Which method preserves an image of a leaf?.

Chemistry
2 answers:
Masteriza [31]3 years ago
6 0

Answer:

As the leaf decomposes, the carbon of the leaf is left in the rock.

Explanation:

A fossil is any rest of the organism or its activity that has a minimum age of 10 thousand years. That is, fossils are the remains or marks of extinct animals, which after death their bodies or marks of their activity have been preserved in some way.

After the death of animals and plants, their components are recycled to be part of other beings, thus completing a cycle of life. For an organism to fossilize, special processes must occur that allow its preservation. When this type of situation occurs, then fossilization occurs.

Then, fossilization is the set of processes that make an organism, some of its parts or traces of its activity, become part of the fossil record.

When vegetables are printed in the sediment leaving their mark, as in this case where an image of a leaf is preserved, it is called "Impressions and Compressions." Then the tissue of the leaf degrades, leaving a trace of where the leaf once was. Finally, <u><em>as the leaf decomposes, the carbon of the leaf is left in the rock.</em></u>

Sav [38]3 years ago
5 0

Answer:

Tree sap flows over the leaf and preserves it.

Explanation:

Amber would preserve the image.

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<h2>Answer : Daniel was related to study of Earth and Space </h2><h2>Whereas Sanya was closely related to chemistry</h2><h3>Explanation :</h3>

As in the given information, Daniel the scientist was studying the effect of tropical storms on coastal erosions. These studies comes under the field of Earth and Space. Earth because coastal erosions are involved in the study, and Space because storms are discussed which is something related to space.

In case of Sanya, it is clear that her study focuses on discharges from the industrial plant that has effect on freshwater swamps. Precisely, she is studying the pH concentration which comes in chemistry.

This prove that Daniel studies Earth and Space whereas Sanya studies Chemistry.

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3 years ago
How do you get matter from food?
IrinaK [193]

Answer:

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Explanation:

Animals have to eat other living things to get their food, but plants can produce their own food. Plants absorb sunlight and use that energy to make glucose from carbon dioxide and water during the process of photosynthesis; glucose is the food plants can use as a source of energy or matter for growth

3 0
4 years ago
Read 2 more answers
How many molecules of oxygen are produced when a sample of 38.9 g of water is decomposed by electricity?
statuscvo [17]

Answer:

A) 6.5\times 10^{23}\ \text{molecules}

Explanation:

m = Mass of water = 38.9

M = Molar mass of water = 18 g/mol

N_A = Avogadro's number = 6.022\times 10^{23}\ \text{mol}^{-1}

The reaction of electrolysis would be

2H_2O(l)\rightarrow 2H_2(g)+O_2(g)

Number of moles of H_2O

n=\dfrac{m}{M}\\\Rightarrow n=\dfrac{38.9}{18}\ \text{mol}

From the reaction it can be seen that 2 moles of H_2O gives 1 mole of O_2

So, number of moles of O_2 produced is

\dfrac{38.9}{18}\times \dfrac{1}{2}=1.081\ \text{mol}

Number of molecules

1.081N_A=1.081\times 6.022\times 10^{23}\\ =6.5\times 10^{23}

So, 6.5\times 10^{23}\ \text{molecules} of oxygen is produced.

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3 years ago
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Ulleksa [173]

Answer:

2 elements

(Mercury and Bromine)

Explanation:

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Does yeast need air to release carbon dioxide
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Yes, it needs oxygen to metabolize sugars that, in the end, produce carbon dioxide (CO2).
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