1) Hudson Bay
2) Both a and c
3) A and D
15) Most precipitation falls during winter
16) steppe
17) It compresses and warms.
18) polar
19) It increases the amount of solar radiation that is reflected into space.
20) small seasonal variations in temperature
21) carbon dioxide, methane, and water vapor
22) increased
23) global rise in sea level
24) Ocean temperatures will increase