81.
Which one among the following is responsible for
formation of ‘Ozone Holes’ in the stratosphere?
a)
Benzobyrene
b)
Hydrocarbons
c)
Chloro fluro carbons
d)
UV radiation
82.
Which one among the following groups of items
contains only biodegradable items?
a)
Paper, grass, glass
b)
Wood, flower, iron – scrap
c)
Sewage, plastic, leather
d)
Cow-dung, paddy – husk, vegetable wastes
83.
Consider the following sanctuaries of India
1.
Periyar
2.
Decigram
3.
Sariska
4.
Kanha
Which one among the following is the correct sequence of location of the
above sanctuaries from south of North?
a)
1, 4, 2, 3
b)
4, 1, 3, 2
c)
1, 4, 3, 2
d)
3, 1, 4, 2
84.
Which of the gas is not known as green house
gas?
a)
Methane
b)
Carbon dioxide
c)
Nitrous oxide
d)
Hydrogen
5.
The endangered species are listed in what colour
data book?
a)
Producer
deer
b)
Primary consumer: Leopard
c)
Secondary consumer : Grass
d)
Decomposer: Bacteria
86.
The endangered species are listed in what colour
data book?
a)
Green
b)
Blue
c)
Black
d)
Red
87.
The Kabul Lamjao, the only floating national
park in the world is in
a)
Asom
b)
Meghalaya
c)
Manipur
d)
Mizoram
88.
The depletion of Ozone layer is mainly due to
a)
Aviation fuels
b)
Radioactive rays
c)
Chlorofluorocarbons
d)
Volcanic eruptions
89.
The main advantage of Rain water Harvesting
(RWH) is
a)
Avoid floods
b)
Reduce the loss of water
c)
Avoid soil erosion
d)
Recharge ground water
90.
The waste generated by and life personal
computers is known as
a)
Physical waste
b)
Computer waste
c)
E-waste
d)
PC-waste
ANSWERS
81.C
82.D
83.C
84.D
85.D
86.D
87.C
88.C
89.B
90.C