Human Population Short Questions and Answers

41 When population reaches carrying capacity

[A] Mortality rate = Birth rate

[B] Mortality rate > Birth rate

[C] Mortality rate < Birth rate

[D] None of these

Answer: Mortality rate = Birth rate

42 When natality is balanced by mortality, there is

[A] Decrease in population growth

[B] Zero population growth

[C] Increase in population growth

[D] Over population

Answer: Decrease in population growth

43 Use of Cannabis products results in

[A] Alteration in perception, thoughts and feelings

[B] Depressed brain activity and feeling of calmness

[C] Suppressed brain function and relief in pain

[D] Stimulation of nervous system, increased alertness and activity

Answer: Alteration in perception, thoughts and feelings

44 Unrestricted reproductive capacity is called

[A] Carrying capacity

[B] Birth rate

[C] Fertility

[D] Biotic potential

Answer: Biotic potential

45 Tranquilliser is drug used for

[A] Inducing sleep

[B] Relieving pain

[C] Giving Soothing effect

[D] Giving stimulating effect

Answer: Giving Soothing effect

46 The study of population is called

[A] Demography

[B] Population explosion

[C] Population dynamics

[D] Census

Answer: Demography

47 Stimulant present in Cola, Tea and Cocoa is

[A] Cocaine

[B] Caffeine

[C] Amphetamine

[D] Tannin

Answer: Caffeine

48 Stimulant cocaine is obtained from

[A] Rauwolfia

[B] Erythroxylon

[C] Papaver

[D] Eucalyptus

Answer: Erythroxylon

49 Smoking hubble-bubble may spread

[A] Pulmonary tuberculosis

[B] Kwashiorkar

[C] Goitre

[D] Rickets

Answer: Pulmonary tuberculosis

50 Slow respiration, slow pulse and constriction of pupil occurs due to drug addiction of

[A] Morphine and opium

[B] Cocaine and heroin

[C] Alcohol and thalidomide

[D] Nicotine and caffeine

Answer: Morphine and opium

51 Select the correct statement

[A] Morphine is often given to a person who has undergone surgery as a pain killer

[B] Chewing tobacco lowers blood pressure and heart rate

[C] Cocaine is given to patients after surgery as it stimulates recovery

[D] Barbiturates when given to criminals make them tell the truth

Answer: Morphine is often given to a person who has undergone surgery as a pain killer

52 Sedatives and tranquillizers are also termed as

[A] pain killers

[B] stimulants

[C] depressors

[D] Hallucinogens

Answer: depressors

53 Sedative and tranquillisers are

[A] Stimulants

[B] Depressants

[C] Hallucinogens

[D] Pain killers

Answer: Depressants

54 Population growth curve in most animals, except humans is

[A] S-shaped

[B] J-shaped

[C] J-shaped with tail

[D] S-shaped with tail

Answer: S-shaped

55 Population explosion in India has occurred in the last

[A] 500 years

[B] 300 years

[C] 100 years

[D] 50 years

Answer: 50 years

56 Population approaching carrying capacity will show

[A] Zero population growth

[B] Mortality > Natality

[C] Mortality < Natality

[D] None of the above

Answer: Zero population growth

57 Papaver album provides one of the following

[A] Nicotine

[B] Morphine

[C] Tannin

[D] Caffeine

Answer: Morphine

58 Organ most damaged by alcohol is

[A] Heart

[B] Cerebrum

[C] Liver

[D] Cerebellum

Answer: Liver

59 Opium, opiates and heroin are got from

[A] Thea

[B] Theobroma

[C] Papaver

[D] Cannabis

Answer: Papaver

60 Opium is got from

[A] Thea sinensis

[B] Coffea arabica

[C] Oryza sativa

[D] Papaver somniferum

Answer: Papaver somniferum

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