Following are important MCQ questions of class 10 Science for Biology. Check your knowledge by attempting these questions. Link for answers given at the end of this page.
MCQ Class 10 Science Biology
Question 1: Which of the following constitutes a food-chain ?
(a) Grass, wheat and mango
(b) Grass, goat and human
(c) Goat, cow and elephant
(d) Grass, fish and goat
Question 2: Which of the following are environment- friendly practices?
(a) Carrying cloth-bags to put purchases ‘ while shopping .
(b) Switching off unnecessary light and fans
(c) Walking to school instead of getting your mother to drop you on her scooter
(d) All of the above
Question 3: Which of the following statements about food chain are correct?
(a) It includes repeated eating, i.e. each group eats the other and is subsequently eaten by some other group of organisms.
(b) It shows a series of branching lines and unidirectional flow of ener
(c) It shows the unidirectional flow of energy and proceeds in a progressive straight line.
(d) Both (a) and (c)
Question 4: 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 non
Question 5: In the following groups of materials, which group (s) contains only non
(i) Wood, paper, leather
(ii) Polythene, detergent, PVC
(iii) Plastic, detergent, grass
(iv) Plastic, bakelitC DDT
(a) (iii)
(b) (iv)
(c) (i) and (iii)
(d) (ii) and (iv)
Question 6: Which of the following statement is incorrect?
(a) All green plants and blue-green algae are producers.
(b) Green plants get their food from organic compounds.
(c) Producers prepare their own food from inorganic compounds.
(d) Plants convert solar energy into chemical energy.
Question 7: What will happen if deer is missing in the food chain given below?
Grass → Deer → Tiger
(a) The population of tiger increases.
(b) The population of grass decreases.
(c) Tiger will start eating grass.
(d) The population of tiger decreases and the population of grass increases.
Question 8: In a class activity, two students were asked to collect different items from their fellow mates and classify them as biodegradable and non. which one is non-biodegradable among these?
(a) Jute crafted bag
(b) A sharpner
(c) Empty fevistick
(d) Both (b) and (c)
Question 9: Which of the following limits the number of trophic levels in a food chain?
(a) Decrease in energy at higher trophic levels
(b) Deficient food supply
(c) Polluted air
(d) Water
Question 10: 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
Question 11: In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk
(a) 5 kJ
(b) 50 kJ
(c) 500 kJ
(d) 5000 kJ
Question12: Manu and Dheer goes to same school, but their parents drop and pick them separately. After learning about natural resources and their management, they talked to their parents, who arrived on few decisions. What could be the best possible decisions among those given below.
(a) To walk the small distance to school
(b) Car pool
(c) Use common school bus at nearby stop
(d) All of the above
Question 13: The pH of water sample collected from a river . was found to be acidic in the range of 3.5 – 4.5. On the banks of the river were several factories that were discharging effluents into the river. The effluents of which one of the following factories is most likely to cause low pH of river water?
(a) Soap and detergent factory
(b) Lead battery manufacturing factory
(c) Plastic cup manufacturing factory
(d) Alcohol distillery
Question14: Varun has read about some national movements associated with conserving environment and its resources. Chipko movement was one tree hugging movement in which the villagers compelled axemen to stop the cutting of trees by embracing and encircling trees. Help him in finding out the person who was not related with this movement?
(a) Rajendera Singh
(b) Gaura Devi
(c) Sunder Lai Bahuguna
(d) Chandi Prasad Bhatt
Question 15: Due to several human activities, waterbodies are polluted resulting in decreased availability of usable water. Maya was testing the samples of polluted water in lab. The presence of which factor will confirmm to her that the water sample is polluted.
Select the correct option.
(a) The presence of coliform bacteria
(b) High BOD
(c) Both (a) and (b)
(d) Either (a) or (b)
Question 16: The construction of large dams has faced a lot of oppositions like the Sardar Sarovar Project on river Narmada lead to Narmada Bachao Andolan. Raj has to identify the correct problem that lead to such strong oppositions against construction of such dams.
Choose the correct option.
(a) Large areas of agricultural land and human habitation submerged
(b) Destruction of large ecosystem and loss of biological diversity
(c) Displacement of large number of local population without adequate rehabilitation
(d) All of the above
Question 17: Ganga has been considered as a symbol of purity but is grossly polluted by waste dumped in it.Government has been making plans to revive this basin. Which steps should according to you be incorporated in the plan to prevent any further polluting of this river? Choose the correct option.
(a) Renovation of sewage pumps and treatment plants
(b) Extension of sewerage in unsewered areas to bring waste from those areas to treatment plants
(c) Installation of new treatment plants
(d) All of the above
Question 18: Madhur was reading about rainwater harvesting and its benefits. He came to learn about different types of structures that are build in different states to conserve rainwater. Select the correct option which represent such structures.
(a) Bhundhis
(b) Khadins
(c) Both (a) and (b)
(d) Compost pit
Question 19: A student reading an article on sustainable development came across some statements which confused him. Those statements are being given below.
Choose the incorrect statement from therm by selecting an option.
(a) Economic development is linked to environmental conservation
(b) Sustainable development encourages development for current generation and conservation of resources for future generations
(c) Sustainable development does not consider the view points of stakeholders
(d) Sustainable development is a long planned and persistent development
Question 20: .A programme called “silviculture” was started to replenish the forest resource, so as to meet the
diverse needs of living beings. According to you, which statements from those given below will not be
considered an advantage of this initiative.
(a) It maintains a perfect water cycle in nature
(b) It prevents soil erosion.
(c) It encourages plantation of multipurpose trees in open lands of urban area
(d) It produces a large quantity of raw materials for industry
Question 21: Many international treaties and protocols have been developed and signed by different countries to
reduce production of greenhouse gases and environment pollution. A treaty/protocol to reduce C02 emission was
(a) Montreal protocol (1987)
(b) Kyoto protocol (1997)
(c) Helesinki declaration (1989)
(d) None of the above