Which of the following statements describes an important principle in the electrification of a cumulonimbus cloud?
A. Raindrops are always positively charged.
B. Supercooled water is always negatively charged.
C. Ice crystals are always negatively charged.
D. Positive ions transfer from a warm object to a cold object.
Answer: D
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a. there were more reptiles than any other type of animal b. reptiles were the only animals to show evolutionary change c. even though there were more plants than reptiles, plants did not evolve d. reptiles predominated the land-dwelling vertebrate animals e. reptiles dominated the oceans
What percent of the United States households grew a garden in 2016:
A. 5% B. 52% C. 38% D. 18%
Where does a jet travel if it wants to minimize turbulence?
A) mesosphere B) troposphere C) stratosphere D) thermosphere E) ionosphere
The Islamic State of Iraq and Syria (ISIS) adheres to an extreme interpretation of Sunni Islam called:
A) Hamas B) Qital C) Wahabism D) Jihad E) Intifada