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Mathematics 10 Online
OpenStudy (hellokitty17):

CHECK MY ANSWER FOR MARINE SCIENCE!! There is no one on Biology!!

OpenStudy (ihelpyoulearn):

Questions?

OpenStudy (hellokitty17):

One of the benefits of phytoplankton is that it removes excess carbon dioxide from the atmosphere. What human activities contribute the most to increasing carbon dioxide levels? smoking tobacco dumping oil in the ocean burning oil and coal planting trees @josedavid

OpenStudy (josedavid):

WHAT answer did u pick

OpenStudy (anonymous):

burning oil and coal

OpenStudy (ihelpyoulearn):

Burning oil and coal

OpenStudy (josedavid):

they are right . burning oil and coal

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