Global warming, Cosmic Background radiation (even though most is blocked not ALL), and pollution.
It is not directly over a flame because it depends on the substance you might not want to heat it too much.you never know what could happen
<span>"Chemical weathering and physical weathering" would be the correct answer
Chemical weathering breaks down the bonds holding the rocks together, and the physical weathering will crush and break them apart.</span>
Explanation:
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Answer:
scientists often communicate their research results in three general ways:
1) One is to publish their results in peer-reviewed journals that can be ready by other scientists.
2) Two is to present their results at national and international conferences where other scientists can listen to presentations
Explanation: