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Quiz 17
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Q.1
Which one of the following is the correct percentage of the two green house gases that contribute to the total global warming?
N
2
O-6%, CO
2
-86%
Methane-20%, N
2
O-18%
CFCs -14%, Methane-20%
CO
2
-40%,CFCs-30%
Q.2
Two objects, A and B, have the same mass but the specific heat of A is larger than B. If both objects absorb equal amounts of energy,
A will become warmer than B
B will become warmer than A
Both A and B will warm at the same rate
A will get warmer, but B will get colder
Q.3
Which book written by Rachel Carson resulted in banning DDT in USA?
Silent spring
The environmentalism
Biomagnification
Food chain
Q.4
In a photochemical smog, which gas is an eye and mucous membrane irritant?
SO
2
O
3
CO
2
N
2
O
Q.5
Which of the following determine the kind (wavelength) and amount of radiation that an object emits?
Temperature
Thermal conductivity
Density
Latent heat
Q.6
UV radiations is injurious to plants because it
break phosphate bonds
increases respiration
causes dehydration
causes genetic changes
Q.7
The first trophic level in a food chain
Green Plants
Herbivores
Carnivores
Bacteria
Q.8
At what time of day is the relative humidity normally at a minimum?
When the air temperature is highest
Just before sunrise
About midnight
When the air temperature is lowest
Q.9
The Term Smog was introduced in 1905 by
Des Voeux
Hult
Canon
Le Chatelier
Q.10
The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere:
Water vapor
Nitrous oxide
Carbon dioxide
Ozone
Chlorofluorocarbons
Q.11
The areas where soil is washed away into streams, transported into rivers and finally lost to the sea are called
Ecologically sensitive areas
Grasslands
Delta
Biologically sensitive areas
Q.12
The presence of high coliform counts in water indicates
contamination by human wastes
phosphorus contamination
decreased Biological Oxygen Demand
hydrocrbon contamination
Q.13
_________ is the study that deals with the interaction of organisms with their environment.
Etiology
Ecology
Botany
Biology
Q.14
As the air temperature increases, with no addition of water vapor to the air, the dew point will:
Remain the same
Increase
Decrease
Increase and become equal to the air temperature
Q.15
In grazer food chain the living plants are directly
destroyed
consumed
decayed
grown
Q.16
The study of food chains and food webs is observed in the phenomenon known as
biological chain
ecosystem
biological magnification
energy flow
Q.17
The place where the worst nuclear disaster took place?
Washington
Chernobyl
Bhopal
Japan
Q.18
Rising air cools by this process:
Expansion
Evaporation
Compression
Condensation
Q.19
The Native Place of Redwood trees?
Australia
Amazon
California
Thailand
Q.20
Pick out the potent green house gas
CO
2
N
2
O
CH
4
O
3
Q.21
In the stratosphere, the air temperature normally:
Decreases with increasing height
Increases with increasing height
Both increases and decreases depending on the season
Cannot be measured
Q.22
Any unfavorable alteration of the environment may be called as
eutrophication
environmental pollution
biomagnigication
bioaccumulation
Q.23
Which one of the following is the most stable ecosystem?
Forest
Mountain
Desert
Ocean
Q.24
_________ is the regulatory authority of quality in India.
CPCB
PCBC
CBCP
CPBC
Q.25
Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of
chlorofluorocarbon
carbon monoxide
carbon dioxide
sulpur dioxide
Q.26
The crack marked on a glacier due to splitting of ice is called
watershed
crevasses
delta
glacier
Q.27
As it travels along the food chain, the concentration of DDT
increases
remains constant
decreases
fluctuates randomly
Q.28
What is an Incinerator?
Furnace used for burning solid waste
Furnace used for treating liquid waste
Both a & b
None of the above
Q.29
Largest reptile in the world
Dragon
Anaconda
Crocodile
Python
Q.30
As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:
Remain the same
Increase
Decrease
Increase until it becomes equal to the dew point temperature
Q.31
During the course of a year, the sun will disappear from view near the North Pole on what date?
June 21
September 23
December 23
January 1
March 21
Q.32
_______ trees shed their leaves during winter and hot summer.
ever green
coniferous
deciduous
Shola
Q.33
This is used as a guide to planting and for determining the approximate date for harvesting crops:
Growing degree-days
Heating degree-days
Cooling degree-days
Mean annual temperature
Q.34
BOD stands for
Biological Oxygen Decrease
Biotic Oxygen Demand
Biological Oxygen Demand
None of the above
Q.35
BOD of a river water is found very high. This means water
is clear
is highly polluted
contain Algae
contain many dissolved minerals
Q.36
What is meant by ex-situ conservation?
Conservation of a species by protecting its habitat along with all other species living there
Conservation of forest eco system
Conservation of a species outside its natural habitat
Conservation of plants
Q.37
The phenomenon of accumulation of non-biodegradable pesticides in human beings
Biomagnification
Bioaccumulation
Biodegradation
Bioremediation
Q.38
Which of the following is not considered a temperature scale?
Fahrenheit
Kelvin
Calorie
Celsius
Q.39
Disease aggravated by air pollution is
cholera
rheumatism
bronchitis
haemophilia
Q.40
The outermost zone of a biosphere reserve is
manipulation zone
core zone
buffer zone
all the above
Q.41
Energy resources derived from natural organic materials are called
geothermal energy sources
fossil fuels
biomass
all of these
Q.42
Total amount of living material at the various trophic levels of a food chain is depicted by pyramids of
numbers
energy
biomass
all of these
Q.43
The type of ecosystem with the highest mean plant productivity is
tropical rain forest
temperate grassland
desert
tundra
Q.44
Carbon sequestration is a strategy used to control
pollution
population explosion
desertification
global warming
Q.45
Towering cumulus (cumulus congestus) would refer to which of the clouds sketched below?
a
b
c
none
Q.46
The conversion of ammonia to nitrate is known as ________
ammonification
nitrification
denitrification
all of these
Q.47
Air pollution is severe in
Cities
Industrialised areas
Densely populated areas
all of these
Q.48
Sinking air warms by this process:
Compression
Expansion
Condensation
Friction
Q.49
Industrial melanism is an example of
protective resemblance with the surrounding
drug resistance
defensive adaptation of skin against UV radiations
darkening of skin due to industries
Q.50
Air pollution can be of
natural origin
artificial or man made origin
both a and b
b only
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