Intrusive igeneous cooled and hardened ________ the Earth's surface, resulting in ________ grained rocks.
A) beneath; finer
B) beneath; coarser
C) at; finer
D) at; coarser
Question 2
Carbon dioxide concentrations in soil are ________ than in the atmosphere because ________.
A) lower; transpiration
B) lower; plant photosynthesis
C) higher; ongoing respiration in the ground
D) higher; decay of dead plants and animals