56) Imagine a profile of soil going to a depth of approximately 10 ft. On a sunny day, the soil at
a depth of 5ft will be ________ the soil at the surface because ________.
A) warmer; soil is a good conductor of heat
B) cooler; land is opaque preventing heating at depths
C) warmer; geothermal processes heat the deeper soils
D) cooler; plate movement mixes the soils and dissipates the heat
57) On average, the illuminated zone in oceans is to a depth of ________, but in some oceans
may be as deep as ________.
A) 20 m (66 ft); 30 m (100 ft)
B) 100 m (330 ft); 500 m (1,640 ft)
C) 60 m (200 ft); 300 m (1,000 ft)
D) 30 m (100 ft); 900 m (3,000 ft)
58) The land surface cools off more rapidly at night than water does because
A) the energy is stored in a shallow layer near the surface of the land, and so it can be radiated
away faster.
B) the amount of energy stored in the water column is less than that stored in land.
C) heat is transferred to deeper depths on land via conduction.
D) There is more ocean than land, so more ocean is being heated than land.