1e. Human activities like burning fossil fuels and deforestation cause concentrations of in the atmosphere to increase. These chemicals act like a blanket, . Examples of these chemicals are . This causes a phenomenon called , which means global temperatures are . When this happens over a long period of time, it contributes to worldwide .

1 answer

Human activities like burning fossil fuels and deforestation cause concentrations of greenhouse gases in the atmosphere to increase. These chemicals act like a blanket, trapping heat. Examples of these chemicals are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). This causes a phenomenon called global warming, which means global temperatures are increasing. When this happens over a long period of time, it contributes to worldwide climate change.