Class 12 Biology MCQ – Population Growth – 3

This set of Class 12 Biology Chapter 13 Multiple Choice Questions & Answers (MCQs) focuses on “Population Growth – 3”.

1. Which of the following formula correctly defines natality?
a) Natality = \(\frac{Number \, of \, deaths \, per \, year}{Mid-year \, population}\) x 1000
b) Natality = \(\frac{Number \, of \, births \, per \, year}{Mid-year \, population}\) x 1000
c) Natality = \(\frac{Number \, of \, births + Number \, of \, deaths}{Mid-year \, population}\) x 1000
d) Natality = Births – Deaths x 1000
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2. Which of the following formula correctly defines mortality?
a) Mortality = \(\frac{Number \, of \, deaths \, per \, year}{Mid-year \, population}\) x 1000
b) Mortality = \(\frac{Number \, of \, births \, per \, year}{Mid-year \, population}\) x 1000
c) Mortality = Number of deaths x 1000
d) Mortality = Number of births x 1000
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3. Which of the following formula correctly defines growth rate (GR)?
a) GR = \(\frac{Natality – Mortality}{Unit time}\)

b) GR = \(\frac{Natality – Natality}{Unit time}\)

c) GR = \(\frac{Mortality – Natality}{Unit time}\)

d) GR = \(\frac{Mortality – Mortality}{Unit time}\)

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4. The 10 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?
a) 20
b) 1.6
c) 4
d) 2
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5. The 20 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?
a) 20
b) 1.0
c) 4
d) 2
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6. The 80 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?
a) 20
b) 16
c) 4
d) 2
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7. The 100 individuals are born per year in a population, and the mid-year population is 5000. What is the birth rate of that area?
a) 2
b) 1.0
c) 20
d) 2
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8. The 20 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?
a) 13
b) 30
c) 2.8
d) 29
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9. The 25 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?
a) 13
b) 30
c) 2
d) 3.6
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10. The 75 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?
a) 13
b) 30
c) 10.7
d) 39
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11. The 95 individuals are dying per year in a population, and the mid-year population is 7000. What is the death rate of that area?
a) 200
b) 13.6
c) 100
d) 395
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12. If in a population the natality is 20 and mortality is 10, in a span of 10 years. What is the growth rate (GR) of that population?
a) 0
b) 20
c) 1
d) -10
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13. If in a population the natality is 30 and mortality is 5, in a span of 10 years. What is the growth rate (GR) of that population?
a) 0
b) 2.5
c) 10
d) -10
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14. If in a population the natality is 50 and mortality is 80, in a span of 10 years. What is the growth rate (GR) of that population?
a) 28
b) 100
c) 10
d) -3
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15. If in a population the natality is 25 and mortality is 55, in a span of 10 years. What is the growth rate (GR) of that population?
a) -3
b) 100
c) 28
d) -38
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Sanfoundry Global Education & Learning Series – Biology – Class 12.

To practice all chapters and topics of class 12 Biology, here is complete set of 1000+ Multiple Choice Questions and Answers.

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