Define permafrost.

a. water below the surface of the tundra stays frozen all year long

b. the frozen soil in mountain highlands

c. rainwater that collects on rocks after a cold rainstorm

d. the dew droplets that freeze at high altitudes

Urban heat islands affect local air current and weather conditions including which of the following? 1) increased number of thunderstorms over cities in summer months 2) lingering dust domes over cities 3) stronger natural disasters such as

What state went through major industrialization first?

Human activity that has damage marine and coastal ecosystem

How much time separated the first man and dinosaurs earth science?

A geographer studying physical geography would be interested in all of the following except a. the types of vegetation growing in the Brazilian rainforest b. the frequency of earthquakes along the San Andreas Fault c.

Life in the desert is spread out over great distances primarily because A. Water is scarce B. People prefer to live apart from each other C. The desert is too hot in some areas D. The soil is richer in areas of high elevation

Which stadium features a number of parking garages that are usually less than half full on game day and may need to be torn down so that the land can be reused for hotels or other purposes?

In the figure below, AC and BD are diameters of circle R- What is the arc measure of BDC in degrees? 155°

What process causes stress in Earth's crust?

If de=fg, de=2, df=4x-6, and eg=2x, what is the length of dg?