A. A sea breeze is due to convection in air
B. Cotton materials are better than woolen ones for use in hot weather
C. Convectional currents play an important role in the cooling of the engine of a motor car
D. The vacuum space in a flask helps to reduce heat loss by radiation.
Correct Answer:
Option D – The vacuum space in a flask helps to reduce heat loss by radiation.
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![Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate the total heat energy supplied [Specific latent heat of fusion of ice = 336Jg−1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Ice of mass 50g at 0°C was completely melted by 70% of the total heat energy supplied. Calculate the total heat energy supplied [Specific latent heat of fusion of ice = 336Jg−1]")
