Examine the following diagrams. columns i and ii contain rock layers a, b, c, d, e and f. both columns were taken from the same dig site at different locations. which two layers are of approximately the same age?

a)
a & d

b)
b & e

c)
c & d

d)
b & f

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69 is the correct math for the amino acids

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.