Understanding Earth

Eolian processes are powered by

Which of the following statements is true?

For the same velocity,why is air flow more turbulent than water flow?

From what direction do the trade winds in the tropics blow?

In the temperate zones of Earth between 30 and 60 latitude,the prevailing winds come from the

Martian dust storms are a major problem for many of the rovers that have roamed the planet surface.Which one of following rovers would you expect to be least affected by the Martian dust?

Due to the Coriolis effect,any large-scale current of air or water is deflected to the _______ in the northern hemisphere and to the _______ in the southern hemisphere.

Which of the following is an important source of dust?

Why are streams able to move larger particles than wind?

The amount of windblown material that wind can carry does not depend on the

For how long did fine-grained dust particles from the eruption of Mount Pinatubo remain in the atmosphere?

Which of the following processes does not increase the amount of dust in the atmosphere?

Most windblown sand consists of

Why does volcanic dust tend to travel farther than wind-blown dust derived from the continents?

Which of the following retards deflation?

How do ventifacts form?

What type of environment yields quartz sand grains that are rounded and frosted?

What is the primary cause of frosting present in the surface of quartz sand grains in the desert?

How does desert pavement form?

Which of the following is a coarse,gravelly ground surface that results from the removal of fine-grained particles by wind erosion?