a) 10000J because only 10 % of energy is available for the next trophic level. b) No, since the loss of energy at each step is so great that very little usable energy will remain after 4 trophic levels. Science important questions ...
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The correct option is (D). The correct combination is Blood pressure: Medulla in hindbrain. The medulla oblongata controls involuntary actions such as heartbeat, breathing, and blood pressure, maintaining vital functions essential for life. Class 10 Science Sample Paper for half yearly ...
A is true but R is false. Biodegradable substances like food waste or leaves decompose into simpler organic matter, forming compost and replenishing soil. The reason is false, as it mentions inorganic substances instead of organic substances. Assertion is ...
The correct option is (b) Zinc. When dilute sulphuric acid reacts with zinc, it releases hydrogen gas. This colourless gas burns with a pop sound when a burning matchstick is brought near, confirming the presence of hydrogen. Class 10 Science Sample ...