Which of the following best describes global soil erosion?
A) Increases the populations of aquatic organisms in streams and rivers
B) Adds soils to streams and rivers, which removes many pollutants
C) Pollutes rivers and oceans and reduces the refill rates of aquifers
D) Creates new ponds and lakes, which help to retain water in aquifers
C
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A(n) ________ is an unconformity between parallel layers of sediment
Fill in the blank(s) with correct word
Clouds form by convection because: a. the rising air warms adiabatically, becomes saturated and condenses
b. topography forces the air upward. c. the rising air cools adiabatically, becomes saturated and condenses. d. None of these choices.
A tropical depression is more intense than a tropical disturbance.
Answer the following statement true (T) or false (F)
Why does this kind of volcano have the steepest slope?
In this problem, you will compute the gradients of Mauna Loa in Hawai‘i, Mount Vsevidof in Alaska, and SP Mountain in Arizona. (You may also determine the elevation changes and distances needed to calculate these gradients by using Google Earth™.) The recommended starting point and distance to measure are given for all three volcanoes. What will be an ideal response?