Respuesta :
- Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and 0.93% argon.
The remainder, less than 0.1%, contains such trace gases as water vapor, carbon dioxide, and ozone. All of these trace gases have important effects on Earth's climate.
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Answer:
sun primary source of energy for earth energy reaches earth in form of light
plants convert light into usable energy energy is never destroyed it only changes form
energy transformations
chemical mechanical sound radiant electrical atomic nuclear
natural resources include air water land organism's rocks and minerals
natural resources are not evenly distributed on earth
renewable resources hydrometric energy solar energy freshwater trees
advantages replaced within our lifetime reduce environmental damage prod cleaner energy require less maintenance use of local services increased
disadvantages unpredictable or inconsistent reliability difficult to generate large enough quantities timely to report
nonrenewable resources are used more quickly than the natural rate aat which they can be replaced the process to replace these sources can take millions
fossil fuels precious metals gemstones
advantages abundant affordable easy to prod reservoirs
disadvantages cannot be replaced once used up damage the environment and cause pollution contribute to global warming challenging ot break the habit of using these sources
Explanation:
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