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Quiz 9
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Q.1
The supersonic jets cause pollution by the thinning of
CO
2
layer
SO
2
layer
O
3
layer
O
2
layer
Q.2
Which of the following is not a green house gas?
Carbon dioxide
Methane
Ozone
SF
6
Q.3
The gas responsible for the greenhouse effect on Venus is:
Carbon dioxide (CO
2
)
Oxygen (O
2
)
Ozone (O
3
)
Nitrogen (N
2
)
Water vapor (H
2
O)
Q.4
Man made sources of radiation pollution are:
mining
explosion of nuclear weapons
nuclear fuels and preparation of radioactive isotopes
all of these
Q.5
Renewable energy resources are mostly based on
biomass
fossil fuels
nuclear power
nuclear power
Q.6
Exponential growth occurs when there is
A great environmental resistance
No environmental resistance
No biotic potential
A fixed carrying capacity
Q.7
Nitrogen gas returns to the atmosphere by the action of
Nitrogen fixing bacteria
Denitrifying bacteria
Nitrifying bacteria
Nitrate fertilizers
Q.8
The most abundant gases in the earth's atmosphere by volume are:
Carbon dioxide and nitrogen
Oxygen and water vapor
Nitrogen and oxygen
Oxygen and helium
Oxygen and ozone
Q.9
In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.
Nitrogen, oxygen
Hydrogen, oxygen
Oxygen, hydrogen
Nitrogen, water vapor
Hydrogen, helium
Q.10
In recycling of mineral elements within an ecosystem, the responsible direct acing organism are called
Decomposers
Producers
Primary consumers
Secondary consumers
Q.11
The limitating factor in temperate and boreal forest is
Nutrients
Frost
Oxygen
Sunlight
Q.12
Eutrophication of water bodies resulting to killing of fishes is mainly due to non-availability of
Food
Light
Oxygen
Essential minerals
Q.13
The most important reason for decrease in biodiversity is
Habitat pollution
Introduction of exotic species
Over-exploitation
Habitat destruction
Q.14
Producers are otherwise known as
Organisms
Manufacturers
Organic compounds
Autotrophs
Q.15
Decomposers are otherwise called as
Detritivores
Primary consumers
Organic matter
Secondary consumers
Q.16
Nitrogen fixing blue green algae is
Clostridium
Rhizobium
Nostoc
Nitrosomonas
Q.17
Area X represents
coal
solar
nuclear
oil
Q.18
Macroconsumers include
Herbivores
Carnivores
Omnivores
All the above
Q.19
Thermal belts are usually found
On valley floors
On hillsides
On mountain tops
None of the above
Q.20
Scientists are able to determine the air temperature in the thermosphere by:
Using radiosondes
Using temperature probes in orbiting satellites
Observing changes in satellite orbits
Direct measurements in manned, high-altitude balloons
Q.21
The term "Nuclear winter" is associated with
Nuclear War
Nuclear disarmament
Nuclear weapon testing
After effect of a nuclear explosion
Q.22
An increase in albedo would be accompanied by ____ in radiative equilibrium temperature.
An increase
A decrease
No change
Unstable oscillations
Q.23
Many wild plant and animals are on the verge of extinction due to
Habitat destruction
Climatic changes
Non availability of food
None of the above
Q.24
Cigarette smoking exposes one to __________
Sulphur dioxide
Carbon dioxide
Nitrogen peroxide
Carbon monoxide
Q.25
Of the gases listed below, which is not believed to be responsible for enhancing the earth's greenhouse effect?
Chlorofluorocarbons (CFC
s
)
Molecular oxygen (O
2
)
Nitrous oxide (N
2
O)
Carbon dioxide (CO
2
)
Methane (CH
4
)
Q.26
Soil erosion can be prevented by
Deforestation
Afforestation
Overgrazing
Removal of vegetation
Q.27
____________ is one of the most endangered species of Indian birds
Bee eater
Paradise fly catcher
Owl
The great Indian bustard
Q.28
The pollution which does not persistent harm to life supporting system is
Noise pollution
Radiation pollution
Organochlorine pollution
All of these
Q.29
A renewable source of energy is
Petroleum
Coal
Nuclear fuel
Trees
Q.30
The term "normal" refers to weather data averaged over:
At least a day
Several months
One year
Thirty years
Q.31
At any given time, ______ of the earth is illuminated by the sun.
One-fourth
One-third
One-half
Two-thirds
Q.32
A permeable rock that contains hydrocarbon fluids and gases is called a/an
Oil trap
Source bed
Oil reservoir
None of these
Q.33
Which of the following group of gases cause photochemical smog?
Ozone, PAN and CO
HC, NO and PAN
O
2
, PAN, and NO
2
O
3
, PAN and NO
2
Q.34
Most harmful environmental pollutants are
natural nutrients in excess
human organic wastes
non-biodegradable chemicals
waste animal feed
Q.35
The destruction of the forest areas by man made efforts is called
Afforestation
Deforestation
Non-forestation
Bio forestation
Q.36
The thickness of ozone layer is measured in
Mm
Du
Nm
Hg
Q.37
The global temperature has risen by about __________ degree celsius, since the peak of last glacialisation.
10
7
8
5
Q.38
The total number of major languages in India are
18
17
16
15
Q.39
_________ is an on-site conservation method.
National parks
Forests
Zoo
Parks
Q.40
If you want to keep an object cool while exposed to direct sunlight,
Put it inside a brown paper bag
Wrap it in black paper
Wrap it in aluminum foil with the shiny side facing inward
Wrap it in aluminum foil with the shiny side facing outward
Q.41
Man and biosphere programme is affiliated with
UNESCO
IUCN
WWF
WIPO
Q.42
_________ is a source of all minerals.
air
water
wildlife
soil
Q.43
_________ energy is the energy stored within the earth.
Geothermal
Mechanical
Wind
Thermal
Q.44
The most abundant greenhouse gas in the earth's atmosphere:
Carbon dioxide (CO
2
)
Nitrous oxide (N
2
O)
Water vapour (H
2
O)
Methane (CH
4
)
Chlorofluorocarbons (CFC
s
)
Q.45
Frost forms when:
Objects on the ground cool below the dew point temperature.
The dew point is 32
o
F or below.
Water vapor changes into ice without first becoming a liquid.
All of the above
Q.46
Which of the following type of pollution can cause the outbreak of jaundice
Air
Thermal
Water
Land
Q.47
Thermal belts are:
Pockets of warm air resting on a valley during the afternoon
Pockets of cold air resting on a valley floor at night
Warmer hillsides that are less likely to experience freezing conditions
Cold, below-freezing air found at the top of a mountain
Q.48
The term "Biocoenosis" was proposed by
Transley
Carl Mobius
Warming
None of the above
Q.49
In the Northern Hemisphere, this day has the fewest hours of daylight:
Summer solstice
Winter solstice
Vernal equinox
Autumnal equinox
Q.50
The combined albedo of the earth and the atmosphere is approximately ____ percent.
4
10
30
50
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