MCQ on Environment Ecology and Biodiversity. We covered all the MCQ on Environment Ecology and Biodiversity in this post for free so that you can practice well for the exam.
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- General Issue on Environment Ecology
- MCQ on Biodiversity and Conservation
- Biodiversity and Conservation NEET MCQ
MCQ on Environment Ecology for NEET Students
In the phosphorus cycle, phosphate becomes available to the plant by
(A) herbivores
(B) producers
(C) decomposers
(D) consumers
Option c – decomposers
Read the given statements and select the correct option. Statement I: The nutrient elements circulate in the ecosystem through biogeochemical cycles. Statement II: Gaseous-type of nutrient cycles include sulphur and phosphorus cycles.
(A) Statement I is correct, and Statement II is incorrect.
(B) Statement I is incorrect, and Statement II is correct.
(C) Both Statements I and II are correct.
(D) Both Statements I and II are incorrect.
Option a – Statement I is correct, and Statement II is incorrect.
The recommended method of disposal of radioactive wastes that faced stiff opposition from the public is
(A) burning radioactive waste at high temperatures.
(B) dumping radioactive waste in a trench.
(C) storing the radioactive wastes in a shielded container and burying it within rocks about 500m deep below the Earth’s surface after sufficient pre-treatment
(D) slash and burn the waste without providing any pre-treatment.
Option c – storing the radioactive wastes in a shielded container and burying it within rocks about 500m deep below the Earth’s surface after sufficient pre-treatment
Read the following statements and select the correct option. i. Like carbon, phosphorus is also released into the atmosphere through the respiratory activities of producers and consumers. ii. 20% of the carbon is found dissolved in oceans. iii. Decomposers contribute to the CO₂ pool by processing waste materials and dead organic matter. iv. Rocks are the natural reservoirs of phosphates.
(A) i and ii are incorrect
(B) ii and iii are correct
(C) iii and iv are incorrect
(D) i and iv are correct
Option a – i and ii are incorrect
Catalytic converters
(A) have catalysts that reduce the emission of poisonous gases.
(B) convert unburnt hydrocarbons into carbon dioxide and water.
(C) convert carbon monoxide and nitric oxide to CO₂ and N₂ respectively.
(D) all of these
Option d – all of these
The organism that occupies more than one trophic level in the pond ecosystem is
(A) fish
(B) zooplankton
(C) phytoplankton
(D) both (A) and (B)
Option a – fish
Select the INCORRECT match.
(A) Chornobyl incident – Accidental leakage of poisonous gases
(B) Slash and burn agriculture – Jhum cultivation
(C) Chipko Movement – Garhwal Himalayas
(D) El Nino effect – Impacts the environment
Option a – Chornobyl incident – Accidental leakage of poisonous gases
The plants utilize a considerable amount of ……… during respiration.
(A) Secondary productivity
(B) Primary productivity
(C) Net primary productivity
(D) Gross Primary Productivity
Option d – Gross Primary Productivity
Which of the following functioning will be adversely affected, if decomposers from an ecosystem are eliminated due to some reasons?
(A) Mineral movement will be blocked
(B) Producers will not receive solar energy
(C) Herbivores will be deprived of food
(D) Both (A) and (C)
Option d – Both (A) and (C)
Considering the primary succession in water, the reed swamp stage is followed by
(A) rooted submerged plant stage
(B) free-floating plant stage
(C) marsh meadow stage
(D) scrub stage
Option c – marsh meadow stage
In an electrostatic precipitator, a scrubber can remove
(A) gases like sulphur dioxide
(B) particulate matter of size 5 micrometers or above
(C) harmless gases like nitrogen and oxygen.
(D) particulate matter of diameter 25 micrometers
Option a – gases like sulphur dioxide
In ecological succession, the individual transitional communities are known as
(A) seral communities
(B) pioneer species
(C) ecological succession
(D) climax communities
Option a – seral communities
Primary succession on land takes place on/in
(A) abandoned fields
(B) burned or cut forests
(C) flooded lands
(D) bare rocks
Option d – bare rocks
Which of the following is INCORRECT regarding polyblend?
(A) It is a mixture of plastic and bitumen.
(B) It is mixed with bitumen to enhance the water-repellent properties of bitumen.
(C) It is a fine powder of recycled modified plastic.
(D) The blends of polyblend and bitumen can be used to lay roads.
Option a – It is a mixture of plastic and bitumen.
Identify the INCORRECT statement.
(A) The pyramid of biomass in most of the ecosystems is upright.
(B) The pyramid of biomass in the sea is generally inverted.
(C) The pyramid of energy is always inverted and can never be upright
(D) The pyramid of numbers can be upright as well as inverted.
Option c – The pyramid of energy is always inverted and can never be upright
Increased level of greenhouse gases has caused
(A) considerable heating of the earth causing global warming
(B) El Nino effect
(C) increased melting of polar ice caps
(D) all of these
Option d – all of these
Identify the ODD one with respect to the consumers of the pond ecosystem.
(A) Molluscs
(B) Zooplanktons
(C) Bottom dwelling forms
(D) Phytoplanktons
Option d – Phytoplanktons
Pick out the INCORRECT statement.
(A) UV-B damages DNA and mutation may occur.
(B) The high amount of absorption of UV-B radiation causes snow blindness.
(C) The radiations of wavelengths longer than UVB are completely absorbed by Earth’s atmosphere.
(D) High doses of UV-B radiation can cause permanent damage to the cornea.
Option c – The radiations of wavelengths longer than UVB are completely absorbed by Earth’s atmosphere.
Pioneer species like lichens
(A) remain a part of the community till it reaches the climax.
(B) invade a bare area.
(C) eliminate other species.
(D) feed on primary consumers.
Option b – invade a bare area.
Ozone depletion is occurring widely in the
(A) troposphere
(B) stratosphere
(C) ionosphere
(D) thermosphere
Option b – stratosphere
The base of the pyramid represents the ( MCQ on Environment Ecology and Biodiversity )
(A) secondary consumers
(B) tertiary consumers
(C) decomposers
(D) producers
Option d – producers
Montreal Protocol was signed in Montreal in 1987, to control
(A) the release of toxic chemicals in the air and water.
(B) air pollution.
(C) emission of ozone depletion substances.
(D) deforestation.
Option c – emission of ozone depletion substances.
Domestic sewage when released in water bodies
(A) reduces dissolved oxygen and biological oxygen demand of the water.
(B) increases dissolved oxygen and biological oxygen demand of the water.
(C) reduces dissolved oxygen but increases the biological oxygen demand of the water.
(D) increases dissolved oxygen but reduce the biological oxygen demand of the water.
Option c – reduces dissolved oxygen but increases the biological oxygen demand of the water.
Which of the following statement regarding ‘ecological communities’ is true?
(A) Their composition and structure remain constant in response to changing environmental conditions.
(B) The changes that occur in a community are non-sequential and anti-parallel with the changes in the physical environment.
(C) The changes that take place in the ecological communities lead to the formation of a climax community that is in near equilibrium with the environment.
(D) Both (B) and (C)
Option c – The changes that take place in the ecological communities lead to the formation of a climax community that is in near equilibrium with the environment.
To remember the contribution of Amrita Devi Bishnoi, the government of India instituted
(A) an award for promoting proper resource utilization and management.
(B) award for conservation of tribals.
(C) award for the individuals or communities from rural areas that have shown extra courage and dedication in ordinary protecting wildlife.
(D) award for conducting research on the economic use of forests.
Option c – award for the individuals or communities from rural areas that have shown extra courage and dedication in ordinary protecting wildlife.
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