Where did coal formation take place?

a. right below the ground

b. beneath the swamp floor

c. beneath the ocean floor

d. on to of mountains

Robert wants to know which fertilizer will work the best for his grass. what can he do to explore this inquiry?

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases