Using hydrogen to power a car is most analogous to using
A) electricity stored in a battery.
B) natural gas as a source of fuel.
C) biogas as a source of fuel.
D) gasoline as a source of fuel.
A
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____________________ rise more than one kilometer above the seafloor, and if flat-topped, they are called ____________________
Fill in the blank(s) with correct word
What is the base level of a stream?
A) the elevation along a smooth concave-up profile B) the elevation at its lowest point C) the elevation at the headwaters D) the elevation where it touches the bedrock
With respect to absorption of solar radiation, it is understood that objects of ________ are the most efficient absorbers.
A. Plastic B. Stone C. Snow D. Light color E. Dark color
In order to reduce evaporation and conserve water, do you think it would be better to water a lawn in the early morning or early evening?
What will be an ideal response?