10 Questions
What does global warming refer to?
The increase in global average air and ocean temperatures
According to statistics, why is warming happening faster than ever before?
Human activity
What is the 'greenhouse effect'?
The trapping of heat by gases in the atmosphere
What is the purpose of the ozone layer in the Earth's atmosphere?
To absorb harmful ultraviolet rays from the sun
What are some man-made greenhouse gases mentioned in the text?
Chlorofluorocarbons and carbon dioxide
What gas is released by deforestation and the combustion of fossil fuels?
Carbon Dioxide
Which gas is produced by emissions from cars, fertilizers, and power plants?
Nitrous Oxide
What gas did refrigerators and aerosols release in the past but are now illegal?
CFCs
What happens when mountain glaciers and polar ice caps melt according to the text?
Sea levels rise
What effect does global warming have on polar bears according to the text?
They are in danger of starving due to less ice for fishing
Learn about global warming and climate change, including the increase in global average temperatures and the long-term variations in weather conditions. Understand the impact of human activity on these phenomena.
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