Environmental Science MCQ for UGC NET. We covered all the Environmental Science MCQ for UGC NET in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in the exams like SSC, Railways, Defence, CDS, NDA, State PSC & CSE Exams, etc. We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
MCQ on Environmental Science for UGC and NET Students
The pollution in a city like Delhi may be controlled to a great extent
(a) by proper sewage and proper exit of chemicals from factories
(b) by wide roads and factories away from the city
(c) by cleaning the city and scanty use of pesticides
(d) All of the above
Option d – All of the above
Which of the following chemicals causes depletion of the ozone layer?
(a) Carbon tetrachloride
(b) Methane
(c) Chlorofluorocarbon
(d) Carbon monoxide
Option c – Chlorofluorocarbon
In a food chain, the third trophic level is always occupied by
(a) herbivore
(b) carnivore
(c) decomposer
(d) producer
Option b – carnivore
The depletion of the ozone layer causes
(a) global wanning
(b) earthquakes
(c) increased UV radiations
(d) acid rain
Option c – increased UV radiations
In the given food chain if the amount of energy at the fourth trophic level is 4 kJ, what will be the energy available at the producer level? Grass → Grasshopper → Frog → Snake
(a) 4 kJ
(b) 40 kJ
(c) 400 kJ
(d) 4000 kJ
Option d – 4000 kJ
What will happen if all the deer are killed in the given food chain? Grass → Deer → Lion
(a) The population of grass decreases.
(b) The population of lions increases.
(c) The population of lions remains unchanged.
(d) The population of lions decreases and grass increases.
Option d – The population of lions decreases and grass increases
Which of the two in the following sets belong to the same trophic level?
(a) Grass; Grasshopper
(b) Goat; Spider
(c) Hawk; Rat
(d) Frog; Lizard
Option d – Frog; Lizard
The cycling of elements in an ecosystem is called
(a) chemical cycle
(b) geochemical cycle
(c) biogeochemical cycle
(d) geological cycle
Option c – biogeochemical cycle
If there was no CO₂ in the earth’s atmosphere, the temperature of the earth’s surface would be
(a) as such
(b) less than the present level
(c) the increase from the present level
(d) dependent upon the oxygen amount of in the environment
Option b – less than the present level
The greenhouse effect is due to the presence of
(a) the ozone layer in the atmosphere
(b) infrared light reaching the earth
(c) a moisture layer in the atmosphere
(d) a CO₂ layer in the atmosphere
Option d – a CO₂ layer in the atmosphere
Which of the following is an abiotic component of an ecosystem?
(a) Humus
(b) Bacteria
(c) Plants
(d) Fungi
Option a – Humus
Which one of the following pairs belongs to the category of primary consumers?
(a) Eagle and snake
(b) Grasshoppers & cattle
(c) Snake and frog
(d) Water beetles & fish
Option b – Grasshoppers & cattle
Which of the following is an autotroph?
(a) Lion
(b) Insect
(c) Tree
(d) Mushroom
Option c – Tree
In the garden ecosystem, which of the following are producers?
(a) Insects
(b) Snakes
(c) Grasses
(d) Rabbits
Option c – Grasses
Which one of the following is an artificial ecosystem?
(a) Pond
(b) Crop field
(c) Lake
(d) Forest
Option b – Crop field
An ecosystem includes
(a) all living organisms
(b) non-living objects
(c) both living organisms and non-living objects
(d) sometimes living organisms and sometimes nonliving objects
Option c – both living organisms and non-living objects
Excessive exposure of humans to UV-ray s results in (i) damage to the immune system (ii) damage to the lungs (iii) skin cancer (iv) peptic ulcer
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (i) and (iii)
(d) (iii) and (iv)
Option c – (i) and (iii)
Which group of organisms are not constituents of a food chain?
(a) Grass, lion, rabbit
(b) Plankton, man, fish, grasshopper
(c) Wolf, grass, snake, tiger
(d) Frog, snake, eagle, grass, grasshopper
Option c – Wolf, grass, snake, tiger
If a grasshopper is eaten by a frog, then the energy transfer will be from
(a) producer to decomposer
(b) producer to primary consumer
(c) primary consumer to secondary consumer
(d) secondary consumer to primary consumer
Option c – primary consumer to secondary consumer
Excessive exposure to ultraviolet radiation causes
(a) inflammation of the liver
(b) cancer of the skin
(c) damage to the lungs
(d) jaundice
Option b – cancer of the skin
Which one of the following is an artificial ecosystem?
(a) Lake
(b) Forest
(c) Pond
(d) Crop field
Option d – Crop field
Acid rain is caused by the oxides of
(a) carbon
(b) nitrogen only
(c) sulphur only
(d) sulphur and nitrogen
Option d – sulphur and nitrogen
Which of the following is biodegradable?
(a) Aluminium can
(b) Polythene bag
(c) Cowdung
(d) DDT
Option c – Cowdung
Living things constitute the biotic component of the biosphere and the abiotic component consists of
(a) air, water, and soil
(b) oceans, land, and mountains
(c) sunlight, oxygen, and carbon dioxide
(d) All of these
Option a – air, water, and soil
Fixation of carbon dioxide in our atmosphere takes place by
(a) conversion of carbon dioxide into glucose by green plants in presence of sunlight
(b) many marine animals use carbonates dissolved in seawater to make their shells
(c) Both (1) and (2)
(d) fire fighting operations in forests
Option c – Both (1) and (2)
We covered all the environmental science MCQ for UGC net above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out:
