Evaporation is a cooling process because
A. of conduction and convection.
B. the temperature of the remaining liquid decreases.
C. heat is radiated during the process.
D. the more energetic molecules are able to escape the liquid.
E. none of the above
Answer: D
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Which of the following describes why a fluffy covering of snow is able to protect sensitive plants and their root systems from damaging low temperatures?
A. Snow is a good insulator. B. Melting snow releases latent heat. C. Snow is a good emitter of infrared energy. D. Snow is a good reflector of sunlight.
Greater involvement by the federal government in the management of MSW disposal started with the Resource and Conservation and Recovery Act about
A) 40 years ago and is currently the responsibility of the EPA. B) 100 years ago and has been under the authority of the FDA. C) 15 years ago and is largely supervised by the Department of Agriculture. D) 60 years ago and is controlled by the Bureau of Land Management.
An unknown type of igneous rock has the following characteristics: the rock is dark in color and composed of coarse mineral grains of pyroxene and olivine. Where did this rock likely form?
A. Below the surface near a mid-ocean ridge B. At the surface near a mid-ocean ridge C. Below the surface near a convergent plate boundary D. At the surface near a convergent plate boundary
A typical population growth curve shows an exponential growth phase followed by a lag phase.
Answer the following statement true (T) or false (F)