How is convection in nature similar to convection on a stovetop?
A) Convection heats up water in nature and on a stovetop.
B) Convection makes animals happy in nature and on a stovetop.
C) Convection heats water on the stovetop much like it heats cold air in the atmosphere, which rises while cool air sweeps in to replace it, causing wind.
D) Convection is completely different in nature and on a stovetop.
Answer: C
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Which of the following demonstrates the correct order of the phases involved in a lightning stroke?
A) step leaders, return stroke, separation of charges, flow of negative charge into ground, dart leader B) dart leader, charge separation, flow of negative charge into ground, step leaders, return stroke C) charge separation, dart leader, step leaders, flow of negative charge into ground, return stroke D) charge separation, step leaders, return stroke, flow of negative charge into ground, dart leader
Isostasy is similar to ____
a. buoyancy b. inertia c. convection d. volume e. conductivity
Half of U.S. emissions of this pollutant is from natural sources such as vegetation
A) sulfur dioxide B) carbon monoxide C) VOCs D) nitrogen oxides E) lead
What is the best way to deal with pollution?
A. Pollution cleanup only B. Pollution prevention only C. A combination of pollution cleanup and prevention D. The most popular way at the current time E. The cheapest way