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Science Test Space
Class 8
Heat
Textbook questions
20.
Answer in detail I
Question:
4
m.
Explain convection in daily life.
a.
Heat transfer in liquids is generally by
conduction
convection
.
b.
Compared to hot water, cool water is
more dense
less dense
.
c.
Convection is a fast heat transfer process than conduction
false
true
.
d.
The hot gases and smoke rise in the atmosphere because they are
lighter
heavier
.
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