Question

8. In convection currents, heat is transferred
a. upwards.
b. downwards.
c. diagonally.
d. horizontally
9. The liquid which has a larger density than many of the solids is
a. water.
b. alcohol
c. mercury.
d. ether.
10. For an object to float in water, its density should be
a. more than 1 g/cc.
b. less than 1 g/cc.
c. either more or less than 1 g/cc.
d. none of the above
O
B. Fill in the blanks.
1. A hydrometer is used to determine
of liquids.
2. While reading the volume of a liquid that has its curvature going down, one should
read the
of the meniscus.
3. One kilogram is the mass of
litre of water at 4 °C.
4. Generally, when a liquid is heated, it expands and becomes
5. When air is heated, its density
6. Equal volumes of iron and wood have
masses.
7. The density of a substance with relative density 2.7 is
8. Distribution of heat throughout the mass of the fluid occurs due to the
set up in them.
faster than the sea.
9. During night, land becomes
10. The lines marked on the side of a ship to indicate the water level to which it can
lines.
submerged safely are called the​

Answer 1

Answer:

pardon

Explanation:

i dont understand

Answer 2

Answer:

8. upwards

9. water

10. 1g/cm3

1. density of liquids

2. no idea

3. 1 litres of water

4. vapour

5. don't know

6. different masses

7. Don't know

8. No idea

9. cold

10. I think reservoir

Hope it helps