The rate of deforestation to create new buildings and farmland has increased over the last 100 years. what effect could this have on the atmosphere in the future? a. a decrease in oxygen b. a decrease in carbon dioxide c. an increase in carbon dioxide d. an increase in air pollution e. an increase in oxygen

The correct answers are a, c, and d, because trees are nature's filters. They are able to filter some of the air pollution produced. As the number of trees decreases, less pollution will be removed from the air.  During photosynthesis, trees take in carbon dioxide and produce oxygen. The result of widespread deforestation will be an increase in carbon dioxide and a decrease in oxygen.