Question :
A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth
Answer : B
It is more difficult to walk on a sandy road than on a concrete road because
A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth
Answer : B
Description :
Related Questions - 1
The absorption of ink by blotting paper involves
A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
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Metals are good conductors of electricity because
A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above
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A) all stars move from east to west
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Of the following properties of a wave, the one that is independent of the other is its
A) amplitude
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