Demography is the study of population, particularly patterns of births, deaths, and marriages
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following molecules should have the same molecular shape and approximate bond angles as ammonia, NH3?
A) BH3 B) CH4 C) SO3 D) PH3 E) NO2
What contributes to the high biological activity and surface nutrients in southern polar waters?
a. Deep-water upwelling b. Weak stratification c. There is a lack of continental margins d. All are contributing factors
The plant debris of swamps turned gradually into coal after buried and heated. The sequence of coal formation is:
a. Bituminous Peat Lignite b. Peat LigniteBituminous c. Peat Bituminous Lignite d. LignitePeatBituminous
Which of the following is used to measure relative humidity?
A) aneroid barometers B) hair hygrometers C) anemometer D) weather vane