Atmosphere
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Transcript of Atmosphere
THE ROLE OF ATMOSPHERE IN
CLIMATE CONTROL
ATMOSPHERE AND CLIMATEA relatively thin envelope of gases, the
atmosphere, plays a vital role in regulating our planet's climate and sustains life. It even helps to protect us from some of the Solar System's hazards - asteroid impacts and solar radiation.
The climate has changed repeatedly throughout Earth's history through natural processes. There is strong evidence that human activities are also affecting the climate.
ROLE OF EARTH’S ATMOSPHERE
The earth's atmosphere is the environment for most of its biological activity and exerts a considerable influence on the ocean and lake environment (see biosphere). Weather consists of the day-to-day fluctuations of environmental variables and includes the motion of wind and formation of weather systems such as hurricanes. Climate is the normal or long-term average state of the atmospheric environment (as determined in spans of about 50 years). The atmosphere protects earth's life forms from harmful radiation and cosmic debris. The ozone layer also protects the earth from the sun's harmful ultraviolet rays; seasonal "holes" in the ozone layer, the first detected above Antarctica and the Arctic in the 1980s, have caused considerable alarm about the consequences of air pollution. Meteors strike the thermosphere and mesosphere and burn from the heat generated by air friction.
The earth's atmosphere is the environment for most of its biological activity and exerts a considerable influence on the ocean and lake environment (see biosphere). Weather consists of the day-to-day fluctuations of environmental variables and includes the motion of wind and formation of weather systems such as hurricanes. Climate is the normal or long-term average state of the atmospheric environment (as determined in spans of about 50 years). The atmosphere protects earth's life forms from harmful radiation and cosmic debris. The ozone layer also protects the earth from the sun's harmful ultraviolet rays; seasonal “holes” in the ozone layer, the first detected above Antarctica and the Arctic in the 1980s, have caused considerable alarm about the consequences of air pollution. Meteors strike the thermosphere and mesosphere and burn from the heat generated by air friction
ROLE OF ATMOSPHERE IN CLIMATE CONTROL
THE ATMOSPHERE ALLOWS SOLAR RADIATION TO ENTER THE CLIMATE
The atmosphere keeps the average temperature of the
earth fairly steady during the day and even during the course
of the whole year.The atmosphereprevents the
sudden increase in tempereature during the
daylight hours.And during the night,it slows down the escape
of heat into outer space
CONCLUSION