vadimbur
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Many scientists believe that the current period of global warming is related to increased levels of

Acarbon dioxide in the Earth's atmosphere.
Bnitrogen in the Earth's atmosphere.
Chydrogen in the outermost layer of the Earth's atmosphere.
Dradon being released from the Earth's soil.

Verified Answer :

W0lf93

Increased levels of carbon dioxide in the Earth's atmosphere is the most widely accepted reason for global warming. Most scientists believe this theory and current research has proven it to be true.

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