Every Book Back multiple-choice question from Environmental Management (10th Standard Science, Samacheer Kalvi) — each with the correct option highlighted and a clear, worked explanation. Free to read in English and Tamil.
Q1
Which of the following is / are a fossil fuel?\ni. Tar\nii. Coal\niii. Petroleum
- A. i only
- B. i and ii
- C. ii and iii
- D. i, ii and iiiCorrect
Explanation. Coal, petroleum and natural gas are the fossil fuels, and tar is obtained from them. All three items listed therefore belong to the fossil fuel group.
Q2
What are the steps you will adopt for better waste management?
- A. reduce the amount of waste formed
- B. reuse the waste
- C. recycle the waste
- D. all of the aboveCorrect
Explanation. Reduce, reuse and recycle together form the approach to conserving resources and managing waste, so every listed step is part of better waste management.
Q3
The gas released from vehicles exhaust are\ni. carbon monoxide\nii. Sulphur dioxide\niii. Oxides of nitrogen
- A. i and ii
- B. i and iii
- C. ii and iii
- D. i, ii and iiiCorrect
Explanation. Vehicle exhaust carries carbon monoxide, sulphur dioxide and oxides of nitrogen alike, which is why motor traffic is a major source of air pollution.
Q4
Soil erosion can be prevented by
- A. deforestation
- B. afforestationCorrect
- C. over growing
- D. removal of vegetation
Explanation. Afforestation covers the land with roots that bind the soil and break the force of rain. The other three options all strip the soil of its protective cover.
Q5
A renewable source of energy is
- A. petroleum
- B. coal
- C. nuclear fuel
- D. treesCorrect
Explanation. Trees can be grown again within a human lifetime, so they are renewable. Petroleum, coal and nuclear fuel exist in fixed amounts and cannot be replaced once used.
Q6
Soil erosion is more where there is
- A. no rain fall
- B. low rainfall
- C. rain fall is highCorrect
- D. none of these
Explanation. Heavy rain carries away the loosened top layer of soil. The greater the rainfall, the more soil is removed, so erosion is highest where rainfall is high.
Q7
An inexhaustible resources is
- A. wind powerCorrect
- B. soil fertility
- C. wild life
- D. all of the above
Explanation. Wind will continue whatever we do, so it cannot be exhausted. Soil fertility and wild life can both be depleted by human activity, which makes them exhaustible.
Q8
Common energy source in village is
- A. electricity
- B. coal
- C. biogas
- D. wood and animal dungCorrect
Explanation. Wood and animal dung are gathered locally at no cost and remain the ordinary domestic fuel in villages, which is what makes them the common source.
Q9
Green house effect refers to
- A. cooling of earth
- B. trapping of UV rays
- C. cultivation of plants
- D. warming of earthCorrect
Explanation. Gases in the atmosphere hold back heat that would otherwise escape, so the earth grows warmer. The greenhouse effect therefore means the warming of the earth.
Q10
A cheap, conventional, commercial and inexhaustible source of energy is
- A. hydropowerCorrect
- B. solar energy
- C. wind energy.
- D. thermal energy
Explanation. Hydropower is a conventional commercial source already used on a large scale, and flowing water is continually renewed. Solar and wind are non conventional, and thermal power burns exhaustible coal.
Q11
Global warming will cause
- A. raise in level of oceans
- B. melting of glaciers
- C. sinking of islands
- D. all of theseCorrect
Explanation. Warming melts glaciers, the melt water raises sea level, and rising seas submerge low lying islands. The three consequences follow one from another.
Q12
Which of the following statement is wrong with respect to wind energy
- A. wind energy is a renewable energy
- B. the blades of wind mill are operated with the help of electric motorCorrect
- C. production of wind energy is pollution free
- D. usage of wind energy can reduce the consumption of fossil fuels
Explanation. The blades of a windmill are turned by the wind itself and drive a generator. If a motor were needed to turn them, no net energy could be produced.
About these Environmental Management questions
These are the Book Back multiple-choice questions for Environmental Management from the Tamil Nadu State Board (Samacheer Kalvi) 10th Standard Science syllabus. Each question shows the correct option and an original, step-by-step explanation so you understand the method, not just the answer. Use the answer key above to jump to any question, then take the practice test to check yourself under exam-like conditions.
Frequently asked questions
How many MCQs are there in Environmental Management?
This chapter has 12 book-back multiple-choice questions, each with the correct answer and a step-by-step explanation.
Are these 10th Standard Science MCQs free to practise online?
Yes. Every question, answer and explanation here is free, and you can also take them as a timed practice test.
Where can I find the Environmental Management book-back answers?
The correct option for each question is highlighted on this page with a worked explanation, plus a quick answer-key summary at the top.
