Thunder will not occur:a
without lightning
b. in wintertime thunderstorms
c. in thunderstorms over the ocean
d. when a thunderstorm is producing precipitation
a
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The crude birth rate is the number of live births per _____ persons in a given year
a. 50 b. 100 c. 500 d. 1,000 e. 10,000
The high concentration of iridium at the Cretaceous Tertiary boundary may be attributable to
A. an out flux of iridium from Earth's interior. B. meteorite bombardment. C. a worldwide rise in sea level. D. none of the above
If the Pacific Ocean plate is moving at 5 centimeters a year and the Island of Hawaii is 5000 Kilometers away from the Aleutian Subduction Zone; how old will the island rock be when it begins to submerge into the trench? Hint: There are 100,000 centimeters in a Kilometer.
a) 1 million years (1,000,000) b) 5 million years (5,000,0000 c) 100 million years (100,000,000) d) 1 billion years (1,000,000,000)
Burial or long-term storage of hazardous waste is the first priority for environmental scientists.
Answer the following statement true (T) or false (F)