Question

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2. Give reasons for the following:
(a) Cooking utensils are made up of metals.
(b) Pressure cooker is provided with bakelite handle.
(c) Chimneys are fitted in factories.
(d) Rooms are provided with ventilators and exhaust fans.
(e) The containers of solar cooker are painted black.​

Answer 1

Answer:

A . BECAUSE METAL CONDUCT HEAT SO THAT THE FOOD INSIDE THE UTENSILS IS COOKED

B. BECAUSE IT COULD BE HOT IF IT IN NO PLASTIC HANDLES

C. TO REMOVE HARMFUL GASES

D. ACTUALLY THE COLOUR BLACK ABSORBS MOST HEAT SO THEN SOLAR CONTAINERS ARE PAINTED BLACK FOR SAVING TIME.