What contributes to the greenhouse effect?
A) Soil erosion
B) Burning fuels such as oil, coal, and gas
C) Failure to use crop rotation
D) Water pollution
Correct Answer:
Verified
Q50: What is an important reason that countries
Q51: Switzerland is located in the middle of
Q52: Which of the following people would probably
Q53: In ancient Greece, most towns were built
Q54: Detergents upset the natural balance of
A)ocean currents
B)the
Q56: Which of these four countries is the
Q57: Which contributed most to the westward expansion
Q58: Look at page 47 of the atlas.
Q59: Find the political map of Africa on
Q60: What is the Earth's smallest ocean?
A)Indian
B)Arctic
C)Atlantic
D)Antarctic
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