Water changing to ice is an example of _____.

a. A chemical change
b. A physical change
c. Convection
d. An exothermic reaction


Answer: b. A physical change

Environmental & Atmospheric Sciences

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By 1950, the population of Latin America and the Caribbean had reached about ________ million

A) 25 B) 75 C) 160 D) 525

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Why is the wet-bulb temperature a good measure of how cool human skin can become?

What will be an ideal response?

Environmental & Atmospheric Sciences

The lakes in the photograph below are all connected by a stream, so they are called



A) cols.
B) kames.
C) paternoster lakes.
D) cirques.

Environmental & Atmospheric Sciences

A standing wave oscillates about a(n) ____________, a location at which there is no vertical movement. Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences