Food Chain 1: Grass → Rabbit → Fox → Tiger → Vulture Food Chain 2: Trees → Insects → Frog → Snake → Owl Both chains interlink to form a food web showing energy flow. cbse sample paper 2025 cbse sample paper ...
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Water is transported through the xylem using transpiration pull. Evaporation from leaf surfaces creates a negative pressure, pulling water upward. Cohesion, adhesion, and capillary action help maintain continuous upward flow. cbse sample paper 2025 cbse sample paper 2025-26 class 10 science
(i) Fish: Two-chambered heart; oxygenated and deoxygenated blood mix before reaching tissues. (ii) Humans: Four-chambered heart prevents mixing, ensuring separate circulation of oxygenated and deoxygenated blood for efficient oxygen supply. cbse sample paper 2025 cbse sample paper 2025-26 class 10 science
When a wire of resistance R is cut into three equal parts, each part has resistance R/3. These three parts connected in parallel give an equivalent resistance R₁ = R/9. Hence, the ratio R₁ : R = 1 : 9. Science ...
The magnetic field strength is more in the region where the field lines are crowded. This means the field strength is maximum near the poles and it reduces as we go away from the poles. The direction of the magnetic ...