Sharks are most common near coral reefs, because there are more fish there to eat.
what type of evidence would be most to gather to test this hypothesis?

a.
average weight of an adult great white shark

b.
what species of sharks are found in different oceans

c.
numbers of tuna and sharks caught by fisherman near coral reefs

d.
counts of sharks observed near a reef and in a nearby section of ocean

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.