Question
(i) What is the normal temperature of a human body?
(ii) How does the heat from the sun reach us? [2 MARKS]
Answer: Option A
:
(ii) It cannot reach us by conduction or convection as there is no medium in space between the earth and the sun. From the sun the heat comes to us by radiation.
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Each part: 1 Mark
(i) The normal body temperature of a human is 37∘C.
(ii) It cannot reach us by conduction or convection as there is no medium in space between the earth and the sun. From the sun the heat comes to us by radiation.
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