The increase of atmospheric CO2 levels to 400 ppm has tipped Earth's natural greenhouse effect toward global warming.The rise of CO2 is due to
A) human activity-the burning of fossil fuels (coal,oil,and gas) and deforestation.
B) human activity-overpopulation and increased reliance on solar energy.
C) human negligence-efforts of not recycling waste materials for potential reuse.
D) the industrial revolution and increased cloud cover.
Correct Answer:
Verified
Q107: Air moves away from a high-pressure region
Q108: The evidence for present-day global warming include
A)extreme
Q109: Wind is generated in response to
A)temperature differences
Q110: The amount of carbon dioxide emissions from
Q111: Going from most significant to least significant,the
Q113: If Earth is closest to the Sun
Q114: Efforts to curb climate change need to
Q115: The variations in the angle at which
Q116: Air moves toward a low-pressure region where
Q117: The wind blows in response to
A)pressure differences.
B)Earth's
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