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?

The answer for this question is C) C & D

C

Explanation:

The answer is C) C&D

i think it is true in my reasonment ..

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: