Which statement is true of both the x and y chromosomes?
o
a. they are the same in size and shape.
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b. they carry all the same genes.
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c. they are always found in homologous pairs.
o
d. they determine the gender of humans.

C they are always found in homologous pairs

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution

C) they are specialized meaning they are designed to do different things