Environmental Studies Pre-Board Exam For PTT 1st 23-24 Batch

Environmental Studies Pre-Board Exam
[ PTT / Unit Test 1st 23 – 24 Batch ]
Time – 1 Hour Marks - 50

Which of these causes the sea level chnge over flooding due to process
1. of melting of snow?
a. Global warming
b. ozone layer
c. both a and b
d. none of these
Which of them can be recycled?
2. a. paper
b.plastic
c.metal
d.all
Recycle of plastic can also minimize air pollution.

3. a. yes
b.no
c. neithet yes nor false
d.none
Recycling is best process to control pollution.

4. a. true
b. false
c.neither true nor false
d.none
Third world war have impact

5. a.litosphere
b.hydrosphere
c.biosphere
MSBTE NEXT ICON BATCH 23 – 24

d.all
Environment consist of
6. a.litosphere
b.hydrosphere
c.biosphere
d.all
which gas gets deposited in lower layer of atmosphere due to

7. decomposition of organic matter?
a. methane
b.ethane
c.nitrogen
d none
Due to acid rain,how pH of soil gets affected?

8. a. pH decreases
b. pH increases
c.pH is unaffected
d. none
Due to acid rain,how fertility of soil gets affected?

9. a.soil gets more fertile
b.soil remains unaffected
c.fertility of soil reduces
d.none
)Ozonosphere is aseperate layer in stratosphere, at a height of

10. a.10-20 kms from sea level
b.15-30 kms from sea level
c.30-40 kms from sea level
d.none
In ecosystem, which one shows one way passage?

11. a) Nitrogen
b) Carbon
c) Potassium
d) Free energy

Which one of the following is not a functional unit of ecosystem?
12. a) Productivity
b) Stratification
c) Energy flow
d) Decomposition
The upright pyramid of number is absent in

13. a) Lake
b) Grassland
c) Pond
d) Forest
The final stable community in ecological succession

14. a) Climax
b) Sere
c) Pioneers
d) Carnivores
A renewable exhaustible natural resource is

15. a) Petroleum
b) Coal
c) Forest
d) Minerals
The maximum Biomass occurs in

16. a) tropical rainforest
b) TemperaTropical forestste forests
c) Taiga
d) Alpine vegetation
A ----------- is a step in the food chain

17. a) Community
b) Biosphere
c) Food web
d) Trophic level
------------- is/are the ultimate source of energy for all life on the earth
18. a) Plants

b) Decomposers
c) Sunlight
d) Water
The study of ecosystem is called

19. a) Environment
b) Ecology
c) E- study
d) Cosmos
The grazing food chain derives energy from ---------- energy

20. a) Plant
b) Fish
c) Anima
d) Sun
Energy flow through an ecosystem was explained by

21. a) E.P. Odum
b) E.P. Rax
c) E.P. Zen
d) E.P. Watson
About 1/3 rd of our land is covered by

22. a) Deserts
b) Grasslands
c) Water
d) Forest
Which of following is a renewable source?

23. a) Wind
b) water
c) Flora and Fauna
d) All of these
________ is major raw material for biogas.

24. a) tree leaves
b) Grass
c) cow dung
d) Waste from kitchen

Minimum time required for formation of one inch of top soil is
25. a) 10 years
b) 5 years
c) 100 years
d) 200 years
Blue baby syndrome(methamogiobinemia)

26. a) Sulpher
b) Arsenic
c) Phosphates
d) Nitrates
Out of total water reserves of the world, about _______ is salty water
27. (marine) and only ______ is fresh water
a) 97%,3%
b) 3%,97%
c) 1%,99%
d) 2%,98%
The main Green House gas is absorbed by forest as raw material for
28. photosynthesis.
a) O2
b) CO2
c) SO2
d) O3
The main driving force of ecological system is

29. a) Wind energy
b) Water energy
c) Solar energy
d) Earth energy
SNG stands for
30. a) Synthetic Natural Gas
b) Systematic Natural Gas
c) Sulphuric Natural Gas
d) Silver Natural Gas

Natural resources do not include
31. a) Water
b) Air
c) Refined oil
d) Wood
What was approximate world population of human in year 2008?

32. a) 667 million
b) 66 billion
c) 6.67 billion
d) 6.67 million
Ideally cover of forest should be______of total area of country.

33. a) 23%
b) 30%
c) 33%
d) 40%
Biogas Generation is mainly based on the principle of

34. a) Anaerobic Degradation
b) Aerobic decomposition
c) Putrefaction
d) None of these
Biotic component of biosphere is not constituted by____
35. a) Producer
b) Decomposer
c) Consumer
d) Air
Oxygen is returned to atmosphere mainly by_____

36. a) Respiration
b) Photosynthesis
c) Fungi
d) Burning of coal
Identify the non Green-House Gas (GHG) from the following:

37. i) Methane
ii) Nitrous Oxide

iii) CFCs
iv) Carbon Monoxide
In the E- waste generated by the Mobile Phones, which among the

38. following
metal is most abundant?
i) Copper
ii) Gold
iii) Silver
iv) All of the above
Major consumer of wood form forest is _______________ .

39. i) Thermal Power Plant
ii) Paper Industry
iii) Chemical Industry
iv) None of the above
Biotic component of biosphere is not constituted by……….

40. i) Producer
ii) Consumer
iii) Decompose
iv) Air
The primary composition of coal is _________________ .

41. i) Carbon
ii) Oxygen
iii) Hydrogen
iv) Nitrogen
Bio gas is a renewable source of

42. i) Energy
ii) Heat
iii) Light
iv) Fossil
The most abundantly available fossil fuel in India is ____________ .

43. i) Coal
ii) Natural Gas
iii) Petroleum
iv) Oil

Which one of the following is the benefit of rainwater harvesting?
44. i) Decrease the ground water level
ii) Create good aesthetic view
iii) Provide a lot of water to play
iv) Flood mitigation
About ____ % area of earth is Oceans.

45. i) 75
ii) 40
iii) 30
Groundwater recharging can be achieved by

46. i) Recharging pits
ii) Recharging well
iii) Both
iv) None
Aerosols cause ______________.

47. i) Air pollution
ii) Land pollution
iii) Water pollution
Domestic wastes which can be decomposed under natural processes are

48. called
_________ pollutants which are relatively harmless.
i) Industrial
ii) Thermal
iii) Biodegradable
iv) Non-biodegradable
Environmental impact of development projects can be

49. i) Immediate
ii) Short term
iii) Long term
iv) All of these

Which of the following is management option for air pollution?
50. a. Regulations and standards
b. Transport planning
c. Using CNG as fuel
d. All of these

Environmental Studies Pre-Board Exam For PTT 1st 23-24 Batch

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Environmental Studies Pre-Board Exam

[ PTT / Unit Test 1st 23 – 24 Batch ]

Time – 1 Hour Marks - 50

Recycle of plastic can also minimize air pollution.

Recycling is best process to control pollution.

Third world war have impact

MSBTE NEXT ICON BATCH 23 – 24

which gas gets deposited in lower layer of atmosphere due to

Due to acid rain,how pH of soil gets affected?

Due to acid rain,how fertility of soil gets affected?

)Ozonosphere is aseperate layer in stratosphere, at a height of

In ecosystem, which one shows one way passage?

MSBTE NEXT ICON BATCH 23 – 24

The upright pyramid of number is absent in

The final stable community in ecological succession

A renewable exhaustible natural resource is

The maximum Biomass occurs in

A ----------- is a step in the food chain

MSBTE NEXT ICON BATCH 23 – 24

The study of ecosystem is called

The grazing food chain derives energy from ---------- energy

Energy flow through an ecosystem was explained by

About 1/3 rd of our land is covered by

Which of following is a renewable source?

________ is major raw material for biogas.

MSBTE NEXT ICON BATCH 23 – 24

Blue baby syndrome(methamogiobinemia)

The main driving force of ecological system is

MSBTE NEXT ICON BATCH 23 – 24

What was approximate world population of human in year 2008?

Ideally cover of forest should be______of total area of country.

Biogas Generation is mainly based on the principle of

Oxygen is returned to atmosphere mainly by_____

Identify the non Green-House Gas (GHG) from the following:

MSBTE NEXT ICON BATCH 23 – 24

In the E- waste generated by the Mobile Phones, which among the

Major consumer of wood form forest is _______________ .

Biotic component of biosphere is not constituted by……….

The primary composition of coal is _________________ .

Bio gas is a renewable source of

The most abundantly available fossil fuel in India is ____________ .

MSBTE NEXT ICON BATCH 23 – 24

About ____ % area of earth is Oceans.

Groundwater recharging can be achieved by

Aerosols cause ______________.

Domestic wastes which can be decomposed under natural processes are

Environmental impact of development projects can be

MSBTE NEXT ICON BATCH 23 – 24

MSBTE NEXT ICON BATCH 23 – 24

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