There were more dark moths around factories because trees were darker near factories because of pollution. More light moths were found in the country away from the factories, in the forests with no factory pollution
When cool air sinks it forces warm air to rise is a example of convection.
Answer:
because plants faces and gets sunlight to grow
Answer:
Kyanite is a major raw material for the mullite used in spark plugs and other refractory porcelains. A clear, deep blue variety is sometimes cut as a gemstone.
Explanation:
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