(Q).
Q: Major exchange pools of carbon include organisms and what else?   Read this paragraph and choose the correct option from the provided answers:  Major exchange pools of carbon include organisms and the atmosphere. Carbon cycles more quickly between these components of the carbon cycle.   Choices:  - location  - duration  - the intensity  - the atmosphere   A:
(A).
the atmosphere


(Q).
Q: How do you determine the atomic weight of an element?   Read this paragraph and choose the correct option from the provided answers:  The atomic weight of an element is a weighted average of its isotopes.   Choices:  - multiply protons and neutrons  - subtract protons from electrons  - divide protons and neutrons  - add up protons and neutrons   A:
(A).
add up protons and neutrons


(Q).
Q: What is it called when two waves in the same medium pass one another?   Read this paragraph and choose the correct option from the provided answers:  Any two waves in the same medium undergo wave interference as they pass each other. At the location where the two waves collide, the result is essentially a summation of the two waves. In some places, a wave crest from one source will overlap a wave crest from the other source. Since both waves are lifting the medium, the combined wave crest will be twice as high as the original crests. Nearby, a wave trough will overlap another wave trough and the new trough will be twice as deep as the original. This is called constructive interference because the resultant wave is larger than the original waves. Within the interference pattern, the amplitude will be twice the original amplitude. Once the waves pass through each other and are alone again, their amplitudes return to their original values.   Choices:  - accumulation  - frequency  - synchrony  - interference   A:
(A).
