1. There is a gas that is essential for human life. Animals and plants, such as gas, oxygen gas, carbon dioxide, and nitrogen gas, etc. 2. influencing the occurrence of quantity and quality of other resources, such as forests and minerals causing wind and rain. 3. adjust the temperature of the Earth. Especially water vapor and carbon dioxide, which prevents the loss of heat from the ground, making. The difference of temperature between day and night, with summer, with winter not very different and makes the surface area of the world with warmth. 4. affect the livelihood The condition of the human mind and body. If the weather is not suitable, such as drought or cold too. People will be living with difficulty. 5. help prevent danger from the Sun's rays by ozone in the atmosphere absorbs ultraviolet rays to be filtered, or which make the skin burn, scorched skin cancer and cataracts. 6. helps burn an object falling from the sky, or a meteor, a tiny particle is not harmful to humans and property.
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