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Murljashka [212]
3 years ago
13

What was Earth's early atmosphere made of?

Biology
2 answers:
Inessa05 [86]3 years ago
7 0

the answer is carbon dioxide

frosja888 [35]3 years ago
5 0
The answer is carbon dioxide is in the air
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Compare the physical and chemical properties of a compound to those of the elements of which it is composed
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Answer:

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water H_2O

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

Physical property is defined as the property of a substance which becomes evident during physical changes. Water is liquid at room temperature whereas hydrogen and oxygen are gases at room temperature.

Chemical property is defined as the property of a substance which becomes evident during chemical changes. Water reacts with metals to form bases, hydrogen reacts with metals to form hydrides and oxygen reacts with metals to form oxides.

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<h3>What is a cladogram?</h3>

A cladogram is a diagram which is tree-like showing similarities and differences among organisms as a result of evolutionary changes that occur in the organisms.

In a cladogram, the most similar organisms have the most recent branching along the cladogram.

Based on the description of the cladogram, the most recent branching occurred between A and C.

Therefore, based on the cladogram, the organisms that are most related are A and C.

Learn more about cladogram at: brainly.com/question/1477703

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The structure of a water molecule is two oxygen atoms bonded
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False

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H₂0

2 Hydrogen

1 Oxygen

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