A) turn them into a major source of greenhouse gases
B) change the weather patterns throughout the world leaves
C) pose a threat to wildlife
D) accelerate their collapse
60. What has made it easier to turn some rain forests into farmland?
A) Rapid rise in carbon levels.
B) Reckless land development.
C) Lack of rainfall resulting from global warming.
D) The unusual warm currents in the Pacific Ocean.
61. What makes Brazil one of the worlds top five contributors to greenhouse gases?
A) The domino effect triggered by the perishing rain forests,
B) Its practice of burning forests for settlement and development,
C) The changed patterns of winds and rains in the Amazon area.
D) Its inability to curb the carbon emissions from industries.
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