Refer to CBSE Class 10 Biology Our Environment MCQs Set B provided below available for download in Pdf. The MCQ Questions for Class 10 Science with answers are aligned as per the latest syllabus and exam pattern suggested by CBSE, NCERT and KVS. Chapter 15 Our Environment Class 10 MCQ are an important part of exams for Class 10 Science and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 10 Science and also download more latest study material for all subjects
MCQ for Class 10 Science Chapter 15 Our Environment
Class 10 Science students should refer to the following multiple-choice questions with answers for Chapter 15 Our Environment in Class 10.
Chapter 15 Our Environment MCQ Questions Class 10 Science with Answers
Question. In a grazing food chain, primary consumers (herbivores) represent
(a) T1 level
(b) T2 level
(c) T3 level
(d) T4 level.
Answer : B
Question. Which of the following statements regarding solid wastes is correct?
(a) Change in the packaging technology has resulted in generation of lot of solid wastes.
(b) Dumping of solid wastes could reduce the fertility of the soil leading to reduction in crop yield.
(c) Accumulation of solid waste could cause increased incidents of disease in a locality.
(d) All of these.
Answer : D
Question. Incineration and pyrolysis are two methods of waste disposal done at high temperature. The two differs from each other as in later
(a) aerobic burning occurs
(b) chemical energy and chemical constituents are recovered
(c) ashes are the end products
(d) medical wastes are burnt with clinkers as the end product.
Answer : B
Question. Food web helps in
(a) providing alternative pathways of food availability
(b) checking the overpopulation
(c) ecosystem stability
(d) all of these.
Answer : D
Question. In the given figure, the various trophic levels are shown in a pyramid. At which trophic level is maximum energy available?
(a) T4
(b) T2
(c) T1
(d) T3
Answer : C
Question. Green house gas produced by incomplete decomposition by anaerobic methanogens is
(a) CH4
(b) CFCs
(c) CO2
(d) N2O
Answer : A
Question. The thinning of ozone layer was first observed in
(a) 1980s
(b) 1950s
(c) 1940s
(d) 1990s.
Answer : A
Question. Which group of organisms together do not constitute a food chain?
I . Grass, lion, rabbit, wolf
II. Plankton, man, hawk
III. Wolf, grass, snake, tiger
IV. Frog, snake, eagle, grass, grasshopper
(a) I and III
(b) III and IV
(c) II and III
(d) I and IV
Answer : C
Question. Of the total amount of energy that passes from one trophic level to another in a food chain, about 10% is
(a) transpired
(b) burnt in respiration
(c) stored in body tissues
(d) lost as heat.
Answer : C
Question. Which of the following groups contain nonbiodegradable substances only?
(a) Flowers, crops, plastic
(b) Plastic, polythene bags, aluminium cans
(c) Grass, wood, glass
(d) Fruit and vegetable peels, grass, wood
Answer : B
Question. Which of the following does not help in protecting our environment?
(a) Crop rotation
(b) Treatment of sewage
(c) Deforestation
(d) Judicious use of fertilisers
Answer : C
Question. DDT was accidently added to the water of a lake. All the organisms in it would be affected by DDT. Which of the following organisms would be affected the most?
(a) Man
(b) Birds living in the lake
(c) Fish living in the lake
(d) Aquatic plants in the lake
Answer : A
Question. Burning of waste substances usually in anaerobic conditions at high temperature of about 670°C is called
(a) land filling
(b) composting
(c) incineration
(d) none of these.
Answer : D
Question. If there was no CO2 in the atmosphere, the earth’s temperature would be
(a) less than the present temperature
(b) same as the present temperature
(c) higher than the present temperature
(d) dependent on O2 content of air.
Answer : A
Question. Select the mismatched pair.
(a) Crop field – Natural ecosystem
(b) Garden – Man made ecosystem
(c) Temperature – Abiotic factor
(d) Grass – Transducer
Answer : A
Question. Select the odd one out.
(a) Tomato leaves
(b) Wood
(c) Synthetic polymers
(d) Lime juice
Answer : C
Question. Which of the following pyramids is always upright?
(a) Pyramid of energy
(b) Pyramid of biomas
(c) Pyramid of numbers
(d) None of these
Answer : A
Question. Which of the following belongs to the category of primary consumers?
(a) Eagle and snake
(b) Grasshopper and cattle
(c) Snake and frog
(d) Water beetle and fish
Answer : B
Question : World Environment day is celebrated on
(a) July 1
(b) July 5
(c) June 5
(d) June 1
Answer : C
Question : The UV radiation from the sun is likely to cause _____________ in human
(a) Skin cancer
(b) Lung cancer
(c) Liver Cancer
(d) Brain Cancer
Answer : A
Question : Accumulation of non- biodegradable pesticides in different trophic levels is called
(a) Biological magnification
(b) Biological degradation
(c) Biological concentration
(d) Biological deposition
Answer : A
Question : Only ____ % of the energy can be transferred from one trophic level to the next trophic level.
(a) 1
(b) 10
(c) 5
(d) 20
Answer : B
Question : The best way to dispose waste is by
(a) Separating biodegradable and nonbiodegradable waste before disposing in bins
(b) Making a paste of all domestic waste and putting them in a river
(c) Throw the waste on road side
(d) Dumping all domestic waste in litter bin
Answer : A
Question : Replacing Plastic cups by paper cups for selling tea on train may be preferred because
(a) Paper cups are bio degradable
(b) Paper cups are non bio degradable
(c) Paper cups are cheaper
(d) Plastic cups are bio degradable
Answer : A
Fill In The Blank
Question. The hierarchies within a food web are called .......... levels.
Answer : Trophic
Question. Gardens and crop fields are examples of ..........
Answer : Artificial Ecosystem
Question. Because there is a loss of energy at each trophic level ......... biomass can be supported at each successive level.
Answer : Less
Question. The flow of energy is always ......... in food chains.
Answer : Unidirectional
Question. The contamination of air by adding gases, smoke and ash is called ..........
Answer : Pollution
Question. Decrease in ozone in stratosphere is linked to release of synthetic chemicals like ..........
Answer : Chlorofluorocarbons
Question. The amount of various chemical materials cycling through the biosphere more or less remains .......... .
Answer : Constant
Question. All the interacting organisms in an area together with the non-living constituents of the environment form an ..........
Answer : Ecosystem
Question. Improvement in life style often results in increased generation of ......... material.
Answer : Waste
Question. The .......... make the energy from sunlight available to the rest of the ecosystem.
Answer : Producers
Question. The various populations of living organisms in an area together form .......... .
Answer : Biotic community
Question. The two important functions that food chains depict are transfer of .......... and ......... .
Answer : Energy, materials
Question. .......... absorb UV rays and protect the earth.
Answer : Ozone layer
Question. ......... is defined as sum total of all conditions and influences that affect the life of organisms.
Answer : Environment
Question. .......... absorb UV rays and protect the earth.
Answer : Ozone layer
Question. All the ecosystems taken together in a geographical area form a bigger unit known as.
Answer : Biome
Question. Climate refers to the prevailing .......... conditions.
Answer : Weather
Assertion & Reasoning Based MCQs
(a) Both assertion and reason are true, and reason is correct explanation of the assertion.
(b) Both assertion and reason are true, but reason is not the correct explanation of the assertion.
(c) Assertion is true, but reason is false.
(d) Assertion is false, but reason is true.
Question. Assertion : The burning of substances at higher temperature to form ash is called incineration.
Reason : Incineration greatly reduces the volume of waste.
Answer : B
Question. Assertion : We live in troposphere.
Reason : Our atmosphere extends beyond troposphere also.
Answer : B
Question. Assertion : Ozone depletion can be reduced by limiting the use of air conditioners and refrigerators.
Reason : Air conditioner and refrigerators release chlorofluorocarbons in the atmosphere that destroy ozone.
Answer : A
Question. Assertion : Pyramid of biomass may be upright or inverted.
Reason : Pyramid showing total biomass produced per unit time is always upright.
Answer : B
Question. Assertion : If pesticide is present in water bodies then fish eating birds accumulate maximum amount of DDT in their bodies.
Reason : Pesticides are not metabolised within bodies of living organisms and get concentrated at each trophic level leading to bioaccumulation.
Answer : A
Question. Assertion : There is always an interaction between neighbouring or distant ecosystems.
Reason : An ecosystem is recognised as self - regulating and self - sustaining entity.
Answer : B
Question. Assertion : Using jute bags while shopping is more environment friendly as compared to polythene bags.
Reason : Jute is biodegradable whereas polythene bag is non-biodegradable.
Answer : A
Question. Assertion : A food chain comprises of producers and consumers.
Reason : Consumers can be herbivores, carnivores and omnivores.
Answer : B
Question. Assertion : Paper cups are better option than plastic cups for serving tea.
Reason : Paper cups are biodegradable and can even be disposed off by burning.
Answer : A
Question. Assertion : Man is a social and cultured animal.
Reason : He developed socio-cultural environment and lives in it.
Answer : A
Matching Questions
DIRECTION : Each question contains statements given in two columns which have to be matched. Statements (A, B, C, D) in column-I have to be matched with statements (p, q, r, s) in column II.
Question.
Answer : A-p- B-q, C-r, D-s
Question.
Answer : A-r, B-s, C-p, D-q
Question.
Answer : A-s, B-r, C-q, D-p
Question.
Answer : A-w, B-s, C-u, D-v, E-p, F-q, G-r, H-t
Question.
Answer : A-r, B-s, C-p, D-q
CBSE Class 10 Physics Sources of Energy MCQs Set A |
CBSE Class 10 Physics Sources of Energy MCQs Set B |
CBSE Class 10 Physics Sources of Energy MCQs Set C |
CBSE Class 10 Biology Management of Natural Resources MCQs |
MCQs for Chapter 15 Our Environment Science Class 10
Expert teachers of studiestoday have referred to NCERT book for Class 10 Science to develop the Science Class 10 MCQs. If you download MCQs with answers for the above chapter you will get higher and better marks in Class 10 test and exams in the current year as you will be able to have stronger understanding of all concepts. Daily Multiple Choice Questions practice of Science will help students to have stronger understanding of all concepts and also make them expert on all critical topics. After solving the questions given in the MCQs which have been developed as per latest books also refer to the NCERT solutions for Class 10 Science. We have also provided lot of MCQ questions for Class 10 Science so that you can solve questions relating to all topics given in each chapter. After solving these you should also refer to Class 10 Science MCQ Test for the same chapter.
You can download the CBSE MCQs for Class 10 Science Chapter 15 Our Environment for latest session from StudiesToday.com
Yes, the MCQs issued by CBSE for Class 10 Science Chapter 15 Our Environment have been made available here for latest academic session
You can find CBSE Class 10 Science Chapter 15 Our Environment MCQs on educational websites like studiestoday.com, online tutoring platforms, and in sample question papers provided on this website.
To prepare for Chapter 15 Our Environment MCQs, refer to the concepts links provided by our teachers and download sample papers for free.
Yes, there are many online resources that we have provided on studiestoday.com available such as practice worksheets, question papers, and online tests for learning MCQs for Class 10 Science Chapter 15 Our Environment