It is wrong to say that plants do not produce excretory products. Plants excrete wastes differently from animals. Oxygen is released through stomata, excess water by transpiration, and other wastes are stored in dead cells, gums, resins, vacuoles, or removed ...
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The correct option is (D). The assertion is false because vultures, being top consumers, have the highest pesticide accumulation due to biological magnification. The reason is true about energy transfer but doesn’t explain it correctly. CBSE Class 10 Science Question Paper ...
The correct option is (A). Both statements are true, and the reason correctly explains the assertion. Tallness in pea plants is controlled by a gene that produces an enzyme responsible for synthesising growth hormones, making the plant tall. CBSE Class 10 ...
The correct option is (C). The use of plastic as packaging material increases non-biodegradable waste. Plastics do not decompose naturally, leading to long-term environmental pollution and harm to soil, water, and living organisms. CBSE Class 10 Science Question Paper 2025 with ...
The correct option is (B). The correct statements are (ii), (iii), (iv). Ozone is poisonous but in the stratosphere, it forms a protective layer shielding Earth from harmful ultraviolet rays that cause skin cancer and damage living tissues. Science important questions ...