1.
What is the harm from the depletion of Earth's ozone layer
a) The average
temperature of earth's surface will increase gradually
b) The oxygen content of the
atmosphere will decrease
c) Increased amount of Ultra
violet radiation will reach earth's surface
d.) Sea levels will rise as
the polar ice caps will gradually melt
Answer: (c)
2. Acid rain is
formed due to contribution from the following pair of gases
a). Methane and ozone
b) Oxygen and nitrous oxide
c) methane and sulpher dioxide
d) Carbon dioxide and sulpher
dioxide
Answer: (b)
3. Which of the
following is a prime health risks associated with greater UV radiation through
the atmosphere due to depletion of stratospheric ozone?
a) Damage to
digestive system
b) Increased liver
cancer
c) Neurological
disorder
d) Increased skin
cancer
Answer: (d)
4. The most serious
environmental effect posed by hazardous wastes
is
a) air pollution.
b) contamination of
groundwater.
c) increased use of land for
landfills.
d) destruction of habitat.
e) none of the above.
Answer: (b)
5. The concentration of
which gas is highest in our environment?
a)
Oxygen
b) Hydrogen
c) Nitrogen
d) Carbon dioxide
Answer: (c)
6. Which of the
following is not as a consequence of global warming?
a) rising sea
level
.b) increased agricultural
productivity worldwide
c) worsening health
effects
d) increased storm frequency
and intensity
e) all of the above are likely
results of global warming
Answer: (b)
7. Which of the
following is not a primary contributor to the greenhouse effect?
a) carbon
dioxide
b) carbon
monoxide
c) chlorofluorocarbons
d) methane
gas
e) nitrous oxide
Answer: (c)
8. The increase in the
concentration of CO2 in our environment in last fifty years; since 1960 is
about
a) 20%
b) 10%
c)
14%
d) 6%
Answer: (c)
9. The depletion in the Ozone layer
is caused by
a) nitrous
oxide.
b) carbon
dioxide.
c)
chlorofluorocarbons.
d)
methane.
e) all of the
above.
Answer: (c)
10. A major in-stream use of water
is for
a) producing hydroelectric
power.
b) dissolving industrial
wastes.
c) agricultural irrigation.
d) domestic use.
e) none of the above.
Answer: (a)
11. Which of the following are the
example of Municipal and industrial discharge pipes
a) nonpoint sources of
pollution.
b) violations of the Clean
Water Act.
c) point sources of pollution.
d) irrigation.
e) none of the above.
Answer: (c)
12. The presence of high
coliform counts in water indicate
a) contamination by
human wastes.
b) phosphorus contamination.
c) decreased biological oxygen
demand.
d) hydrocarbon contamination.
e) none of the above.
Answer: (a)
13. How the
biological oxygen demand gets affected with the increased presence of organic
matter in water?
a) the oxygen demand
increases
c) the oxygen demand decreases
c) the oxygen demand remains
unchanged
d) None of the above
Answer: (a)
14. Which of the
following is not a major source of groundwater contamination?
a) agricultural products
b)
landfills
c) septic tanks
d) underground storage
tanks
e) all of the above are major
sources of groundwater contamination
Answer: (e)
15. Which of the following
is not considered as part of water use planning?
a) waste water
treatment
b) water diversion
projects
c) storm sewer
drainage
d) salinization
e) Water use planning
considers all of the above issues
Answer: (e)
16. The stage in which the
biological processes is used to purify water in a wastewater treatment plants
is called
a) secondary sewage
treatment
b) primary sewage
treatment
c) wastewater
reduction
d) biochemical
reduction
e) none of the
above
Answer: (a)
17. Groundwater mining in
coastal areas can result into
a) increase in the
salinity of groundwater.
b) decrease in the toxicity of
groundwater.
c) decrease in the salinity of
groundwater.
d) increase in the water
table.
e) none of the
above.
Answer: (a)
8. Which of the following is not an
important characteristic of the Green Revolution?
a) mechanized
agriculture
b) hybrid
seeds
c) slash and
burn
d)
monoculture
e) all of the above are
characteristic of the Green Revolution
Answer: (c)
19. The three primary soil
macronutrients are
a) carbon, oxygen, and
water.
b) copper, cadmium, and
carbon.
c) potassium, phosphorus, and
nitrogen.
d) boron, zinc, and
manganese.
e) none of the
above.
Answer: (c)
20. Which of the following is
negative effects on the soil and water due to conventional, mechanized farming
practices?
a) soil
compaction
b) reduction in soil organic
matter
c) soil erosion
d) leaching of pesticides and
fertilizers into the groundwater
e) all of the
above
Answer: (e)
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