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lutik1710 [3]
3 years ago
7

When studying the average number of children that are born to each woman in a country (assuming the mother lives to the end of h

er childbearing years), a researcher is studying the country’s __________.
A.
infant mortality rate
B.
maternal mortality rate
C.
childhood obesity rate
D.
total fertility rate
Geography
2 answers:
Shtirlitz [24]3 years ago
6 0

Answer:

D

Explanation:

won't be A as that means infant death

b means mother death rate

C is obesity rate

deff fn [24]3 years ago
5 0
D total fertility rate is the answer
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Answer:

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Explanation:

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b) E = m\times c^2

E = Energy from converted mass of m

c = speed of light

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The yearly energy consumption for a US population  of 300 million in an year = 3\times 10^{16} J/year

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x\times 3\times 10^{16} J/year=5.4\times 10^{18} J

x=\frac{5.4\times 10^{18} J}{3\times 10^{16} J/year}=180 years

180 years would this amount of energy support a population of 300 million.

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