Biology, 05.07.2019 06:30 charrsch9909
One of your classmates says that the pollution from his car doesn't harm the environment because the exhaust is warm and warm air will rise out of the atmosphere since it is less dense. is your friend correct? why or why not?
Answers: 1
Biology, 22.06.2019 05:40
Why do we perceive objects as retaining their brightness under different lighting levels?
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Biology, 22.06.2019 14:30
The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
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