10. How many greenhouse gases exist?
10marks
E. Name the person who said these following words:
1.India's ace athlete once said, "I didn't want to be an Olympian I just wanted to keep
breaking my record
Answers
Answer:
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Explanation:
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Answer:
10.Some greenhouse gases occur naturally and enter the atmosphere as a result of both natural processes (such as decomposition of organic matter) and human activity (such as burning fossil fuels and agriculture). Greenhouse gases that occur both naturally and from human activities include water vapor, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and ozone (O3). Other greenhouse gases have essentially no natural sources, but are side products of industrial processes or manufactured for human purposes such as cleaning agents, refrigerants, and electrical insulators. These include the fluorinated gases: chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HCFCs), bromofluorocarbons (halons), perfluorcarbons, PFCs, nitrogen trifluoride, NF3, and sulfur hexafluoride, SF6.
These gases contribute to atmospheric warming when they absorb infrared radiation emitted by the solar-warmed Earth and transfer their extra energy to the surrounding atmospheric gases. The figure shows that the temperature at the surface of the Earth has increased by about 0.9 °C during the past century with more than half the change since about 1980. The temperature can change only if there is a change in the Earth’s energy budget as the balance between the energies of incoming and outgoing radiation is upset.
1. usain bolt