The chemical product of burning hydrogen or using hydrogen fuel cells as an energy source is ________

A) glucose and oxygen
B) acids
C) water
D) carbon monoxide
E) nontoxic ash


C

Environmental & Atmospheric Sciences

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The Enhanced -Fujita Intensity Scale (EF-scale) is applied to:

A) typhoons. B) tornadoes. C) thunderstorms. D) lightning.

Environmental & Atmospheric Sciences

Why is the formation of air masses associated with high pressure systems rather than low pressure systems?

What will be the ideal response?

Environmental & Atmospheric Sciences

The oldest oceanic crust is slightly less than _________ years old

a. 300,000 d. 180 million b. 4.6 billion e. 3.96 billion c. 70,000

Environmental & Atmospheric Sciences

One way of increasing our supplies of rare earth minerals is to ____.

A. import them from asteroids B. extract and recycle them from discarded electronics C. grow them chemically in a lab D. require manufacturers to use a different material E. buy more from China

Environmental & Atmospheric Sciences