10th Standard Science Chapter 15

10th Standard Science Chapter 15 Quiz. how much you know or you don’t  know,  test here. quiz  contains only 10 questions there no time limit.

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10th Standard Science Chapter 15

TEST YOUR SKILLS

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Q1. Every food chain in the ecosystem begins with………. which are the original source of food.

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Q2. We should reduce the use of the plastic bags, bottles etc. because:

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Q3. Among the following choose the correct option which contains only biodegradable items?

i. Wood, paper, PVC

ii. Paper, seeds, detergent,

iii. Paper, animal excreta, wood

iv. Wool, leaves, paper

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Q4. Which among the following statements is incorrect in view of the plants?

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Q5. In a food chain the second trophic level is occupied by:

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Q8. Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?

i. Peptic ulcers

ii. Eye disease like cataract

iii. Damage to lungs

iv. Skin cancer

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Q9. Which among the following is a correct full form for DDT?

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Q10. If 100 J energy is available at the producer level in a food chain then the energy available to the secondary consumer will be:

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Q11. Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?

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Q12. The substance which is chiefly responsible for the depletion of ozone layer is:

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Q13. What will happen if deer is missing in the food chain given below?

Grass → Deer → Tiger

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Q14. Which of the following substances will not be converted to compost when added in a composting pit?

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Q15. Global warming is a phenomenon related to

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