Tundra is known for its a. sparse precipitation and extreme cold temperatures
b. sparse precipitation and mild winters
c. coniferous forests
d. heavy rainfall and extreme cold temperatures

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

Which part of a mountain receives the majority of moisture due to the rain shadow effect? a. the leeward side b. the windward side c. the bottom of the mountain d. all parts of the mountain receive equal amounts of moisture.

Based on current rates the earths human population is expected to grow how much by 2050