Loss of calcium ions from soil may be a major problem associated with acid rain.

Answer the following statement true (T) or false (F)


True

Environmental & Atmospheric Sciences

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Which of the following is a recent human impact on the nitrogen cycle?

A) the Haber-Bosch process B) nitrogen mining C) introducing legumes into plant rotation D) biological nitrogen fixation E) bacterial nitrification

Environmental & Atmospheric Sciences

Which of the following would be the best method for obtaining a numerical age for sedimentary rocks?

A) Observe any unconformities within the area. B) Radiometrically age-date metamorphic rocks near the sedimentary rocks. C) Use radioactive isotopes in sediment grains contained within the sedimentary rock. D) Relate the sedimentary rocks to a datable igneous mass, such as a dike or sill.

Environmental & Atmospheric Sciences

Which numbered feature on this figure is a scarp?



A) 1, a linear or curved scar marking where the slide pulled away from the hill
B) 2, small fractures within the sliding block
C) 3, the intact layers below the rock slide
D) 4, the front of the slide, where it overruns the land surface
E) 5, a valley or other open space in front of the slide

Environmental & Atmospheric Sciences

According to the Koeppen system, an A climate is one in which

A) potential evaporation exceeds precipitation.
B) the average temperature for all months is greater than 18 degrees C.
C) the coldest month of the year has an average temperature higher than -3 degrees C, but below 18 degrees C.
D) all months have mean temperatures below 10 degrees C.

Environmental & Atmospheric Sciences