53. Conservation Biology
Conservation Biology
1:07 minutes
Problem 2b
Textbook Question
Textbook QuestionThe main cause of the increase in the amount of CO2 in Earth's atmosphere over the past 150 years is a. increased worldwide primary production. b. increased worldwide standing crop. c. an increase in the amount of infrared radiation absorbed by the atmosphere. d. the burning of larger amounts of wood and fossil fuels.
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