What happens to tropical soils when the rainforest is cleared?
a. The soil improves in that soluble nutrients are no longer depleted by the trees.
b. There is little effect on the soil because of its depth of richness.
c. Clearing interrupts the critical nutrient cycle and leads to soil leaching.
d. The soils stabilize and become excellent for grain crops.
C
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Brazil has the highest population of any country in Latin America
Indicate whether the statement is true or false
What does Newton's first law state?
A. An object at rest always has no frictional force as long as no force is exerted on the object. B. An object at rest can exert no force as long as no force is exerted on the object. C. An object at rest will remain at rest as long as no force is exerted on the object. D. An object at rest equals its mass times the acceleration produced as long as no force is exerted on the object.
The leading consumer and polluter of water in the United States is
A) industry. B) agriculture. C) household use. D) municipalities.
What is the point of subsurface origin of an earthquake called?
a. focus b. ground zero c. epicenter d. scarp e. nexus