01Why are the human arm and whale forelimb considered homologous?मानव हाथ और व्हेल के अग्रपाद को समजात क्यों माना जाता है?
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Science
Corrosion and extraction basics
In this Class 10 Science topic from Metals and Non-metals, students learn how corrosion gradually damages metals through reactions with air, moisture, or other environmental factors. They explore everyday examples such as rusting, identify conditions that speed up corrosion, and understand prevention methods including painting, oiling, galvanising, alloying, and electroplating. The topic also introduces how useful metals are obtained from ores through concentration, conversion to oxides, reduction, and refining, with extraction methods linked to the metal’s reactivity.
Medium · Level 1 · 1 questions