Which of the following is the best approach to minimize the spread of pine feeding beetles in a pine-dominated forest?

A) using pesticides to kill the beetles
B) planting additional pines once some trees die
C) introducing maples, oaks, and other hardwood tree species
D) releasing sterile wasps into the forest


Answer: C

Environmental & Atmospheric Sciences

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Mass wasting is most likely to occur in what climate?

A)arid warm regions B)humid tropical regions C)arctic regions D)temperate regions E)none of these

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What explains why the soil property known asĀ ion exchange is important in environmental geology?

A. causes farmers to use more chemicals to control weeds B. makes soils fertile by allowing them to store nutrients C. leads to the buildup of salts within a soil D. reduces soil erosion in sandy soils E. causes soils to compact more easily

Environmental & Atmospheric Sciences

Why is Maritime Arctic left out of the air-mass classifications?

A) They do not occur. B) They occur every ten years. C) They only rarely occur.

Environmental & Atmospheric Sciences

Economic specialization is an obstacle to achieving economies of scale

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences