Global Warming Due to the Greenhouse Effect May Be

Multiple Choice

Global warming due to the greenhouse effect may be

A) reduced by the burning of fossil fuels,which removes oxygen from the atmosphere.
B) of little concern,since it is part of the normal cycle for the planet.
C) made worse by photosynthesis,which adds carbon dioxide to the atmosphere.
D) moderated by photosynthesis,which removes carbon dioxide from the atmosphere.