Explore topic-wise MCQs in VITEEE.

This section includes 49 Mcqs, each offering curated multiple-choice questions to sharpen your VITEEE knowledge and support exam preparation. Choose a topic below to get started.

1.

 Which of the following pairs is a sedimentary type of biogeochemical cycle?
A. phosphorus and nitrogen
B. phosphorus and sulphur
C. oxygen and nitrogen
D. phosphorus and carbon dioxide.
Answer» C. oxygen and nitrogen
Discussion
2.

In Minamata Bay Japan the animals which remained free from minamata disease, are
A. dogs
B. cats
C. pigs
D. rabbits.
Answer» E.
Discussion
3.

The Taj Mahal is threatened due to the effect of
A. oxygen
B. hydrogen
C. chlorine
D. sulphur-dioxide.
Answer» E.
Discussion
4.

The abundance of a species population, within its habitat, is called
A. relative density
B. regional density
C. absolute density
D. niche density.
Answer» E.
Discussion
5.

 In a biotic community, the primary consumers are
A. detritivores
B. herbivores
C. carnivores
D. omnivores.
Answer» C. carnivores
Discussion
6.

If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected, because
A. mineral movement will be blocked
B. the rate of decomposition will be very high
C. energy flow will be blocked
D. herbivores will not receive solar energy.
Answer» B. the rate of decomposition will be very high
Discussion
7.

When huge amount of sewage is dumped into a river, its B.O.D. will
A. slightly decrease
B. remain unchanged
C. increase
D. decrease.
Answer» D. decrease.
Discussion
8.

A disease caused by eating fish contaminated by industrial waste, containing mercury compounds, is called
A. osteosclerosis
B. Hashimoto’s oxidase
C. Bright’s disease
D. minimata disease.
Answer» E.
Discussion
9.

Sounds above what level are considered hazardous noise pollution?
A. above 80 dB
B. above 150 dB
C. above 30 dB
D. above 120 dB.
Answer» E.
Discussion
10.

 The dominant second trophic level, in a lake ecosystem, is
A. phytoplankton
B. zooplankton
C. benthos
D. plankton.
Answer» C. benthos
Discussion
11.

 Which one of the following gases contributes maximum to the green house effect’ on the earth?
A. carbon dioxide
B. chlorofluoro carbon
C. Freon
D. methane.
Answer» B. chlorofluoro carbon
Discussion
12.

Which among the following is likely to have the highest levels of D.D.T. depositions in its body?
A. sea gull
B. phytoplankton
C. eel
D. crab.
Answer» B. phytoplankton
Discussion
13.

 Pyramid of numbers in a pond ecosystem is
A. irregular
B. inverted
C. upright
D. spindle shaped.
Answer» D. spindle shaped.
Discussion
14.

Pyramid of numbers deals with number of
A. species in an area
B. individuals in a community
C. individuals in a tropic-level
D. subspecies in a community.
Answer» D. subspecies in a community.
Discussion
15.

 Association of animals when both partners are benefitted
A. colony
B. mutualism
C. commensalism
D. ammensalism.
Answer» C. commensalism
Discussion
16.

Soil best suited for plant growth is
A. clay
B. loam
C. sandy
D. gravel.
Answer» C. sandy
Discussion
17.

 Study of inter-relationships between organisms and their environment is
A. ecology
B. ecosystem
C. phytogeography
D. ethology.
Answer» B. ecosystem
Discussion
18.

American water plant that has become a troublesome water weed in India
A. Cyperus rotundus
B. Eichhornia crassipes
C. Typha latifolia
D. Trapa bispinosa.
Answer» C. Typha latifolia
Discussion
19.

 Ultraviolet radiations from sunlight causes a reaction that produces
A. fluorides
B. carbon monoxide
C. sulphur dioxide
D. ozone.
Answer» E.
Discussion
20.

 Soil particles determine its
A. texture
B. field capacity
C. water holding capacity
D. soil flora.
Answer» B. field capacity
Discussion
21.

A fertile agricultural soil appears deep coloured at the surface as compared to soil one metre down. The reason for colour of top soil is
A. more moisture
B. rich in organic matter
C. rich in iron, calcium and magnesium
D. recent formation.
Answer» C. rich in iron, calcium and magnesium
Discussion
22.

 River water deposits
A. loamy soil
B. alluvial soil
C. laterite soil
D. sandy soil
Answer» C. laterite soil
Discussion
23.

Water is a resource that is
A. nondegradable nonmaintainabie
B. degradable maintainable
C. renewable
D. non-renewable.
Answer» D. non-renewable.
Discussion
24.

Soil fertility is reduced by
A. crop rotation
B. nitrogen fixing bacteria
C. decaying organic matter
D. intensive agriculture.
Answer» E.
Discussion
25.

Minerals and metals are
A. biodegradable resources
B. renewable
C. non-renewable
D. renewable and nonrenewable resources.
Answer» E.
Discussion
26.

 Petroleum is a
A. synthetic product
B. renewable resource
C. nonrenewable resource
D. nonrenewable resource
Answer» D. nonrenewable resource
Discussion
27.

Most hazardous metal pollutant of automobile exhausts is
A. mercury
B. cadmium
C. lead
D. copper.
Answer» D. copper.
Discussion
28.

 Pick up the correct food chain
A. grass —> chamelion —> insect —> bird
B. grass —> fox —> rabbit —» bird
C. phytoplankton —> zooplankton —> fish
D. fallen leaves —> bacteria —> insect larvae.
Answer» D. fallen leaves —> bacteria —> insect larvae.
Discussion
29.

Food chain in which microorganisms breakdown the food formed by primary producers is
A. parasitic food chain
B. detritus food chain
C. consumer food chain
D. predator food chain.
Answer» C. consumer food chain
Discussion
30.

Which one is true?
A. commensalism when none of the interacting populations affect each other
B. symbiosis when the interaction is useful to both the populations
C. symbiosis when neither populations affects each other
D. commensalism when the interaction is useful to both the populations.
Answer» C. symbiosis when neither populations affects each other
Discussion
31.

Soil water available to roots is
A. surface water
B. hygroscopic water
C. gravitational water
D. capillary water.
Answer» E.
Discussion
32.

Deep black soil is productive due to high proportion of
A. sand and zinc
B. gravel and calcium
C. clay and humus
D. silt and earthworm.
Answer» D. silt and earthworm.
Discussion
33.

Homeostasis is
A. tendency of biological systems to change with change in environment
B. tendency of biological systems to resist change
C. disturbance of self regulatory system and natural controls
D. biotic materials used in homeopathic medicines.
Answer» C. disturbance of self regulatory system and natural controls
Discussion
34.

Renewable source of energy is
A. biomass
B. coal
C. petroleum
D. kerosene.
Answer» B. coal
Discussion
35.

A non-renewable resource is
A. nonrenewable nonconventional energy source
B. nonrenewable conventional energy source
C. renewable nonconventional energy source
D. renewable conventional energy source.
Answer» C. renewable nonconventional energy source
Discussion
36.

 Acid rain is due to increase in atmospheric concentration of
A. ozone and dust
B. CO2 and CO
C. SO2 and CO
D. SO2 and NO2.
Answer» E.
Discussion
37.

Domestic waste constitutes
A. nonbiodegradable pollution
B. biodegradable pollution
C. effluents
D. air pollution
Answer» B. biodegradable pollution
Discussion
38.

Pyramid of numbers in a grassland/tree ecosystem
A. always inverted
B. always upright
C. both (a) and (b)
D. spindle-shaped.
Answer» C. both (a) and (b)
Discussion
39.

 Deforestation will decrease
A. soil erosion
B. soil fertility
C. land slides
D. rainfall.
Answer» E.
Discussion
40.

 Gas released during Bhopal tragedy was
A. methyl isocyanate
B. potassium isothiocyanate
C. sodium isothiocyanate
D. ethyl isothiocyante.
Answer» B. potassium isothiocyanate
Discussion
41.

Major aerosol pollutant in jet plane emission is
A. sulphur dioxide
B. carbon monoxide
C. methane
D. fluorocarbon.
Answer» E.
Discussion
42.

The relation between algae and fungi in lichen is
A. symbiosis
B. parasitism
C. commenalism
D. protocooperation.
Answer» B. parasitism
Discussion
43.

Soil conservation is
A. conversion of sterile soil into fertile one
B. aeration of soil
C. erosion of soil
D. protection against loss.
Answer» E.
Discussion
44.

Green house effect is warming due to
A. infra-red rays reaching earth
B. moisture layer in atmosphere
C. increase in temperature due to increase in carbon dioxide concentration of atmosphere
D. ozone layer of atmosphere.
Answer» D. ozone layer of atmosphere.
Discussion
45.

in an ecosystem, which one shows one-way passage
A. free energy
B. carbon
C. nitrogen
D. potassium.
Answer» B. carbon
Discussion
46.

What is true of ecosystem?
A. primary consumers are least dependent upon producers
B. primary consumers out-number producers
C. producers are more than primary consumers
D. secondary consumers are the largest and most powerful.
Answer» D. secondary consumers are the largest and most powerful.
Discussion
47.

A mutually beneficial association necessary for survival of both partners is
A. mutualism/symbiosis
B. commensalism
C. amensalism
D. both A and B.
Answer» B. commensalism
Discussion
48.

Competition for light, nutrients and space is most severe between
A. closely related organism growing in different niches
B. closely related organisms growing in the same area/niche
C. distantly related organisms growing in the same habitat
D. distantly related organisms growing in different niches. (1988)
Answer» C. distantly related organisms growing in the same habitat
Discussion
49.

Upper part of sea/aquatic ecosystem contains
A. plankton
B. nekton
C. plankton and nekton
D. benthos.
Answer» B. nekton
Discussion