Explain why white clothing helps keep us cool, whereas black clothing helps to warm us. Which is the better reflector? Which is the better absorber?
What will be an ideal response?
White clothing reflects all colors of light and absorbs very little of the light. It also reflects infrared radiation. Since the energy of the infrared and light radiation is reflected away, we are not warmed by it. Black clothing absorbs almost all of the radiation that falls on it, infrared as well as light. The energy absorbed by black clothing is felt as heat and warms us.
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What is infiltration?
A) The transition from liquid to gas as a result of increases in temperature B) Plants taking in water C) Water soaking into the ground D) Water running off the surface and entering a channel
Dense minerals, like magnetite and native gold, may be concentrated in a crystallizing magma chamber by
A. porosity. B. gravity. C. gases. D. fluids.
Carbamoyl phosphate is formed in which region(s) of the cell?
A) the cytoplasm B) the mitochondria C) both a and b D) neither a nor b
Subarctic
What will be an ideal response?