Multiple choice question VII — task. Science CBSE, Class 10.

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1. To work properly, wind-electric generators need wind speeds of at least about

$1.5\ \frac{km}{hr}$
$15\ \frac{km}{hr}$
$150\ \frac{km}{hr}$
$1500\ \frac{km}{hr}$

2. Geothermal energy is feasible in regions that

are near the sea
have thermal plants
have coal mines
are over hot spots in the crust

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