What is luster?

An indication that a mineral has double refraction

The color of a mineral

A mineral's ability to transmit light through itself

The color of a mineral in powdered form

The quality of light reflected from a mineral's surface


The quality of light reflected from a mineral's surface

Environmental & Atmospheric Sciences

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Which of the following instruments measures the speed at which precipitation moves toward or away from an observer?

A. Doppler radar B. radiosonde C. aerovane D. wind psychrometer

Environmental & Atmospheric Sciences

What is biodiversity? What do scientists need to know to calculate it for a habitat?

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following activates the receptor sites for acetylcholine?

A) curare B) nicotine C) opiates D) none of these

Environmental & Atmospheric Sciences

More oxygen is found in surface waters at lower latitudes than in surface waters at polar latitudes.

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

Environmental & Atmospheric Sciences