Biodiversity and Conservation MCQ Questions & Answers in Botany

71. The Earth Summit held in Rio de Janeiro in 1992 was called:

A to reduce $$CO_2$$ emissions and global warming

B for conservation of biodiversity and sustainable utilisation of its benefits

C to assess threat posed to native species by invasive weed species

D for immediate steps to discontinue use of CFCs that were damaging the ozone layer

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72. Petroleum is a

A synthetic product

B renewable resource

C non-renewable resource

D inconvenient resource

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73. A non-renewable resource is

A non-renewable non-conventional energy source

B non-renewable conventional energy source

C renewable non-conventional energy source

D renewable conventional energy source

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74. Alexander Von Humboldt described for the first time:

A Laws of limiting factor

B Species-Area relationships

C Population Growth equation

D Ecological Biodiversity

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75. The table below gives the population (in thousands) of ten species (A-J) in four areas (a-d) consisting of the number of habitats given within brackets against each. Study the table and answer the question which follows:

Area and Number of habitats Species and their populations (in thousands) in the

A B C D E F G H I J

a (11) 2.3 1.2 0.52 6.0 - 3.1 1.1 9.0 - 10.3

b (11) 10.2 - 0.62 - 1.5 3.0 - 8.2 1.1 11.2

c (13) 11.3 0.9 0.48 2.4 1.4 42 0.8 8.4 2.2 4.1

d (12) 3.2 10.2 11.1 4.8 0.4 33 0.8 7.3 113 2.1

Which area out of a to d shows maximum species diversity?

A b

B c

C d

D a

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76. Which of the following regions of the globe exhibits highest species diversity?

A Madagascar

B Himalayas

C Amazon forests

D Western Ghats of India

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77. In mung bean, resistance to yellow mosaic, virus and powdery mildew were brought about by :

A Hybridisation and selection

B Mutation breeding

C Biofortification

D Tissue culture

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78. Soil fertility is reduced by

A crop rotation

B nitrogen fixing bacteria

C decaying organic matter

D intensive agriculture

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79. Which of the following is considered a hot- spot of biodiversity in India ?

A Indo-Gangetic Plain

B Eastern Ghats

C Aravalli Hills

D Western Ghats

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1 2 3 4 5 6 7 8

Area and Number of habitats	Species and their populations (in thousands) in the
Area and Number of habitats	A	B	C	D	E	F	G	H	I	J
a (11)	2.3	1.2	0.52	6.0	-	3.1	1.1	9.0	-	10.3
b (11)	10.2	-	0.62	-	1.5	3.0	-	8.2	1.1	11.2
c (13)	11.3	0.9	0.48	2.4	1.4	42	0.8	8.4	2.2	4.1
d (12)	3.2	10.2	11.1	4.8	0.4	33	0.8	7.3	113	2.1

71. The Earth Summit held in Rio de Janeiro in 1992 was called:

72. Petroleum is a

73. A non-renewable resource is

74. Alexander Von Humboldt described for the first time:

76. Which of the following regions of the globe exhibits highest species diversity?

77. In mung bean, resistance to yellow mosaic, virus and powdery mildew were brought about by :

78. Soil fertility is reduced by

79. Which of the following is considered a hot- spot of biodiversity in India ?

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