

SAT Biology - Natural Resources and Its Management
Exam Duration: 45 Mins Total Questions : 30
Which of the following is a renewable resource?
- (a)
Soil
- (b)
Water
- (c)
Flora and fauna
- (d)
All the above
The life supporting gases such as O2 CO2 and N2 are renewable resources? chiefly concentrated in the
- (a)
Troposphere
- (b)
Exosphere
- (c)
Hemisphere
- (d)
Stratosphere
Which of the following soil is the best for plant growth?
- (a)
Sandy soil
- (b)
Clay
- (c)
Gravel
- (d)
Loamy soil
Biogas generation is mainly based on the principle of _____________.
- (a)
Fermentation
- (b)
Degradation
- (c)
Purification
- (d)
Both (a) and (b)
Coal is _____________ in nature.
- (a)
Soft
- (b)
Hard
- (c)
Thin
- (d)
Hot
Coke is used in the manufacturing of
- (a)
Lead
- (b)
Iron
- (c)
Steel
- (d)
Copper
Coal tar has a/an _________ smell.
- (a)
Unpleasant
- (b)
Pleasant
- (c)
Both (a) & (b)
- (d)
None of these
Bitumen is used in:
- (a)
Electric generators
- (b)
Road surfacing
- (c)
Coal tar
- (d)
Natural Gas
Useful substances obtained from petroleum & natural gases are called:
- (a)
Chemicals
- (b)
Petroleum products
- (c)
Petrochemical
- (d)
None of these
Diesel is used in:
- (a)
Cooling oil
- (b)
Paints
- (c)
Road surfacing
- (d)
Electric generators
Which of them is used in extraction of metals?
- (a)
Coke
- (b)
Coal gas
- (c)
Coal tar
- (d)
Petroleum
Which of them is used as solvent for dry cleaning?
- (a)
Diesel
- (b)
Kerosene
- (c)
Petrol
- (d)
Paraffin wax
If the plants of world die, all the animals will also die due to the shortage of
- (a)
cold
- (b)
food
- (c)
oxygen
- (d)
timber
In a natural ecosystem decomposers include
- (a)
bacteria & fungi
- (b)
parasitic algae
- (c)
macroscopic animals
- (d)
all the above
Which of the following is a free living nitrogen fixing bacterium present in soil
- (a)
Azotobacter
- (b)
Nitrosomonas
- (c)
Rhizobium
- (d)
Pseudomonas
Estuary is the meeting point of
- (a)
river with lake
- (b)
river with oceans
- (c)
sea with ocean
- (d)
lake with ocean
To float on water Physalia, the Portuguese man of war stores
- (a)
water
- (b)
air
- (c)
water and Air
- (d)
salts
The two great industrial tragedies namely, MIC and Chernobyl tragedies respectively occurred where and which time?
- (a)
Bhopal 1984, Ukraine 1990
- (b)
Bhopal 1984, Ukraine 1988
- (c)
Bhopal 1984, Ukraine 1986
- (d)
Bhopal 1986, Russia 1988
Organic matter decayed to a relatively stable, amorphous state; formed when soil microorganisms decompose animal and plant material into elements usable by plants
- (a)
manure
- (b)
peat
- (c)
humus
- (d)
green manure
Lichens are found on hillsides under conditions where neither the alga nor the fungus can live alone. This shows that the relationship between the alga and the
fungus is one of
- (a)
Parasitism
- (b)
Saprophytism
- (c)
Mutualism
- (d)
Commensalism
Soil pollution can be controlled by this process
- (a)
recycling waste materials
- (b)
manufacture of new materials
- (c)
using waste materials
- (d)
using plastic carry bag
In forests, the humus
A. is produced from dead leaves by decomposers
B. provides a method to release nutrients from dead plants and animals
C. is a very good source of nitrates and phosphates
D. is responsible for making soil acidic
Select the correct alternative from the following.
- (a)
A, B
- (b)
B, C
- (c)
C, D
- (d)
A, D
Which of the following is an inexhaustible natural resources?
- (a)
Forests
- (b)
Minerals
- (c)
Coal
- (d)
Water
BOD stands for:
- (a)
Biological oxygen demand
- (b)
Biochemical oxygen demand
- (c)
Biochemical organic decomposition
- (d)
Biological organic decomposition
e-waste is
- (a)
emergeney waste
- (b)
energy waste
- (c)
electronic waste
- (d)
None of these
Methods of safe disposal of wastes include
- (a)
dumping
- (b)
composting
- (c)
drainage
- (d)
all of these
Maximum petroleum is used in
- (a)
agriculture
- (b)
shipping
- (c)
industries
- (d)
transportation
Devices used to remove gaseous and particulate air pollutants are called
- (a)
Scrubber
- (b)
Chimneys
- (c)
Sedimentation tanks
- (d)
All of the above
Which soil has the maximum water holding capacity?
- (a)
Sandy soil
- (b)
Clayey soil
- (c)
Loamy Soil
- (d)
Both (a) and (c)
Which of the following is not a primary contributor to the greenhouse effect?
- (a)
Carbon dioxide
- (b)
Carbon monoxide
- (c)
Chlorofluorocarbons
- (d)
Methane gas