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Elis [28]
3 years ago
5

Which TWO events happen in the rock cycle

Biology
2 answers:
ddd [48]3 years ago
5 0

Answer:  

A and D

Explanation:  this is correct  i got it

quester [9]3 years ago
3 0

Answer:

A and D

Explanation:

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Answer:

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Explanation:

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2 years ago
Two pure substances combine to make a new substance. The new substance cannot be
jok3333 [9.3K]
Mixture should be the answer.
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What is the relationship between structure and function of molecules
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PS:Can I be brainliest.

Have a nice day

Explanation:

Each molecule has a characteristic size and shape that determines its function in the living cell. The shapes of molecules are determined by the positions of the atoms' orbitals. When an atom forms covalent bonds, the orbitals in its valence shell are rearranged.

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Type of change that doesnt involve the formation of a new kind of matter
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That is a chemical change or reaction.
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3 years ago
Read 2 more answers
1.
Allushta [10]
1. The answer is "<span>the energy required to start the reaction".

</span>This energy is called as activation energy of the reaction. If the activation energy is high, reaction is slow. Enzymes help to carry out the reaction by a new path by reducing the activation energy. But the energy of reactants and the products remain as same as without enzyme.

2. The answer is "reaction in cells would be too slow to sustain life<span>".

</span>If the activation energy is very high for the reaction, then that reaction will be very slow and will require more time<span> to complete the reaction. Then survival is very low. Hence, the roll of enzymes is very important to sustain life.</span>
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