The answer is:
<u><em>A) Methane</em></u>
because if u picked anything else the reaction would not happen
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Answer:
Option C, functional theory
Explanation:
As per the functional theory , the attitude of an individual depends on his/her needs or goals. In other words it can be said that attitude of a person depicts the hidden motives of their lives. Attitude is one of the basic need of an individual which shapes their life desires and expectation and also is an imperative part of the cognitive system. Thus, it can be said that attitude is something which is acquired as per the requirement of life. 'Hence option C is correct
From what we know, we can confirm that a variation that makes a gene different in some way from other genes for the same characteristics is called a mutation.
<h3>What is a mutation?</h3>
All genes in an organism are coded through a series of nucleotides. Each gene has its own sequence of nucleotides that make it unique. A mutation is a change in this nucleotide sequence caused by either external forces such as <u>UV light</u>, or <u>internal</u> <u>errors</u>.
Therefore, given the definition described, we can confirm that a variation that makes a gene different in some way from other genes for the same characteristics is called a mutation.
To learn more about mutations visit:
brainly.com/question/17106056?referrer=searchResults
The grain size for location D (hornfels) is fine.