Which rare-earth metal is used to make nickel-metal-hydride batteries?

A. lanthanum
B. ytterbium
C. europium
D. terbium


Answer: A

Environmental & Atmospheric Sciences

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Answer the following statement true (T) or false (F)

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Broad symmetrical ridges that cross ocean basins are called

A. seamounts. B. abyssal plains. C. mid-ocean ridges. D. island chains.

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Why is a continuous source of energy from the sun needed for Earth's biosphere?

What will be an ideal response?

Environmental & Atmospheric Sciences

Surface air is warmer and drier as a result of compressional heating in a downslope wind

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences