Porous underground layers of rock that can store large amounts of water known as . A. groundwater
B. Aquifers
C. sounds
D. none of the above

When it is summer at the south pole, a. the northern hemisphere is tilted toward the sun. b. the southern hemisphere is tilted away from the sun. c. the northern hemisphere is tilted away from the sun. d. both the southern and northern hemispheres are tilted toward the sun.