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True or False: The volume of carbon dioxide in the atmosphere has been decreasing over the past few decades. |
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False. The volume of carbon dioxide has been rising mainly due to the burning of fossil fuels. |
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Water vapour can account for up to ___ percent of the air by volume in warm and wet tropical regions. |
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Water vapour absorbs parts of insolation from the sun and helps preserve the earth's radiated heat, acting like a blanket. |
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Dust particles are generally concentrated in the lower layers of the atmosphere; however, convectional air currents may transport them to ___ altitudes. |
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The layer of the atmosphere where all changes in climate and weather occur is called the ___. |
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To absorb ultraviolet radiation and protect life on Earth from harmful solar energy. |
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True or False: The temperature in the troposphere decreases at a rate of 1°C for every 100 meters of height. |
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False. The temperature in the troposphere decreases at a rate of 1°C for every 165 meters of height. |
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The layer of the atmosphere that contains electrically charged particles and reflects radio waves is known as the ___. |
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The mesopause is the upper limit of the mesosphere where temperatures begin to increase with height, marking a transition to the thermosphere. |