If a rock cuts across another rock, then the rock doing the cutting is a. older than the rock getting cut. b. younger than the rock getting cut. c. the same age as the rock getting cut. d. older or younger than the rock getting cut.

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures