Answer: E. When one contracts, the other relaxes and this allows the bones to move; triceps and biceps.
Explanation:
Antagonistic action occurs between the two pairs of muscles. In this action one muscle while contracts other muscle relaxes. The example of antagonistic pair is of biceps and triceps. The triceps remain in the relax phase while the biceps contracts so as to lift the arm.
The environment is your correct answer<span />
Environmental activism refers to the coming together of various groups of individuals and organization that works in social, scientific, political and conversational fields with the main purpose of addressing environmental concerns.
