Which of the following best describes the root cause of soil loss?
A. removal of natural vegetation
B. climate change
C. fields becoming too dry
D. farmers applying too much fertilizer
E. farmers plowing their fields when wet
Answer: A
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What is the difference between "magma" and "lava"?
A) Magma is less dense than lava. B) It is just a name change, and lava is what magma is called if it reaches the surface of the Earth. C) Magma makes igneous rocks and lava forms volcanoes. D) Magma is formed deep in the Earth and lava forms near the surface of the Earth.
Which of the following statements about oceans is not true?
a. Ocean currents redistribute heat from the sun. b. Most of the heat absorbed by the ocean air is absorbed in tropical waters. c. Irregularly shaped continents cause currents to flow in circular patterns. d. Differences in density of warm and cold seawater set up warm and cold currents. e. Oceans currents flow counter-clockwise in the northern hemisphere.
What shape do glacial troughs generally display?
A) V B) W C) Y D) U
People choose to live in hazardous areas for a variety of reasons. Which is the LEAST likely reason why a person in a developing country would decide to live in a hazardous area?
a. ?More attractive scenery is usually found at hazardous areas b. ?Less hazardous areas are unaffordable or unavailable. c. ?The location has access to clean water. d. ?The location has access to fertile land. e. ?The person does not know the history of potential hazards.