Answer:
Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
Explanation:
Answer:
contraction and relaxation of the heart
Explanation:
<h3>Chemical <u>
bond</u> is the answer. </h3>
Explanation:
A chemically bond is defined as the invisible force between two atoms which together forms a molecule. Chemical bonds are of different types - covalent bond and ionic bond. These bonds are formed between the atoms because of a chemical reaction.
In a chemical reaction, different reaction intermediates are formed which leads to the formation of new forces of attraction between nearby atoms or ions to form new bonds. Thus chemical bonds are formed from chemical reaction.
What animals are there to choose from?