#Question id: 9152
#Unit 9. Diversity of Life Forms
In mountainous areas of western North America, north-facing slopes would be expected to ________.
#Question id: 9153
#Unit 9. Diversity of Life Forms
Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be ________.
#Question id: 9154
#Unit 9. Diversity of Life Forms
The main reason polar regions are cooler than the equator is that ________.
#Question id: 9155
#Unit 9. Diversity of Life Forms
The success of plants extending their range northward following glacial retreat is primarily determined by ________.
#Question id: 9156
#Unit 9. Diversity of Life Forms
Generalized global air circulation and precipitation patterns are caused by ________.
#Question id: 9157
#Unit 9. Diversity of Life Forms
At 15-30°N, air masses formed over the Pacific Ocean are moved by prevailing westerlies, where they encounter extensive north-south mountain ranges. Which statement best describes the outcome of this encounter between a landform and an air mass?