Q8. Give reasons a) Sea breeze blows during the day b) A thick glass tumbler cracks when a hot milk/tea is poured into it c) Ice blocks are kept wrapped in gunny bags. d) We sweat profusely during summer. e) The box of a solar cooker is painted black from inside. f) Birds puff up their feathers in winter.
Answers
Answer:
Please make me brainlist
Answer:
A) During the day, the sun heats up both the ocean surface and the land. ... The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze.
B) When boiling water is poured into a thick tumbler its inner surface expands. However, due to low thermal conductivity of glass, the expansion of outer surface of the tumbler is quite small. Due to uneven expansion of the outer and inner surfaces, the tumbler breaks.
C) In summer, ice is kept wrapped in a gunny bag because air is filled in the fine pores of the gunny bag,which is the insulator of heat.
D) In the blazing heat of summer, our core body temperature increases very quickly even with no exertion. And so, in response, our bodies sweat more in summer.
E) The inside surface of a solar cooker is painted black because the solar cookers have to focus the sunlight onto a recipient such as a cooking pan.
F) So birds fluff up in the cold to trap as much air in their feathers as possible. The more trapped air, the warmer the bird.