Why are wetlands important to the health of the overall environment? a. they reduce the levels of erosion by trapping sediment. b. they support a wide variety of organisms. c. they are a medium for the filtration and cleansing of water. d. all of the above are true.

How many types of rock can form from the rock cycle

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius