Match List I (Solar energy system) with List II (Function) and choose the correct answer from the options given below.

List I

i.Solar ovens

ii.Solar ponds

iii.Solar stills

iv.Solar kilns

List II

a.Drying

b.De-salination of water

c.Cooking

d.Producing hot water

Ai-c, ii-d, iii-a, iv-b

Bi-c, ii-d, iii-b, iv-a ✓ Correct

Ci-d, ii-c, iii-b, iv-a

Di-d, ii-c, iii-a, iv-b

Correct answer: (B) i-c, ii-d, iii-b, iv-a

Explanation

Solar ovens concentrate sunlight in an insulated box to cook food.

Solar ponds store solar heat in salty layers and are tapped to produce hot water.

Solar stills evaporate and recondense water to remove salt, achieving de-salination.

Solar kilns use trapped solar heat to dry timber and other produce.

Matching gives ovens-cooking, ponds-hot water, stills-de-salination, kilns-drying.

These low-cost devices harness solar thermal energy without electricity.

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