Discussion
Match the following :
| List-I | List-II |
|---|---|
| (a) Wind Valley effect | (i) Air moves from land to sea |
| (b) Land Breeze effect | (ii) Air moves from plain surface to valley |
| (c) Sea Breeze effect | (iii) Air moves from outside to city |
| (d) Heat island effect | (iv) Air moves from sea to land |
Answer: B
The correct match is a-ii, b-i, c-iv, d-iii.
- Valley wind: by day the slopes heat up and air moves from the plains into the valley and up its sides (ii).
- Land breeze: at night the land cools faster than the sea, so air moves from land to sea (i).
- Sea breeze: by day the land heats faster, so air moves from sea to land (iv).
- Heat island: the warm city air rises, and cooler air moves in from the surrounding countryside to the city (iii).
The option that matches a-i, b-ii and so on takes the lists in order and pairs land breeze with the valley wind. The other two options give the land and sea breezes the wrong directions; the last one reverses them outright.
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