The end of existence of a group of organisms, caused by their inability to adapt to changing environmental conditions, is called
a. commencement.
b. extinction.
c. genesis.
d. insurgence.

it would be f

explanation:

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.