The first atoms of the universe (developed at the beginning of the Big Bang) formed vast gas clouds. Such clouds are called __ .
a. Supernova
b. Protostar
c. Nebulae
d. Stellar nucleosynthesis
e. both c and d
Ans: c. Nebulae
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Small leaves and deep roots are a drought _______________ adaptation of plants
Fill in the blank(s) with correct word
The International Date Line is located at approximately
a. 90 degrees west latitude. b. 90 degree west longitude. c. 180 degrees latitude. d. 180 degrees longitude.
Assuming the amount of water vapor remains constant, a temperature increase will ________ the specific humidity
A) increase B) decrease C) have no effect on D) increase until the dew point is met, then decrease
What event triggered the main eruption of Mount St. Helens in May 1980?
A. Magma encountered groundwater and exploded. B. A landslide removed rocks and released pressure on the magma. C. Melting snow caused a huge steam eruption. D. All of these choices are correct.