Per NCERT, when seawater is allowed to evaporate, what is left behind — illustrated in Activity 5.4 (Fig 5.9)?
ABoth water and salt vaporise
BSalt crystals (since water evaporates and dissolved salts remain) — basis of solar salt manufacturing in coastal India
CPure water
DNo residue is left
Answer & Solution
Correct answer: B. Salt crystals (since water evaporates and dissolved salts remain) — basis of solar salt manufacturing in coastal India
Per NCERT Activity 5.4 (Indian Scientific Contributions), seawater evaporation leaves salt crystals — basis of panga/karkatch salt manufacture.
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