Which one of the following statements best explains why convection doesn't occur in solids? group of answer choices solids are less compressible than gases. the molecules in a solid vibrate at a lower frequency than those of a liquid. solids are more compressible than liquids. the molecules in a solid are more closely spaced than in a gas. the molecules in a solid are not free to move throughout its volume.

Option (e) is the correct answer.

Explanation:

Convection is defined as the process in which a fluid (liquid or gas) when heated then more dense (cooler) substance sinks at the bottom whereas less dense (hotter) substance will rises at the top.  

This intermixing of the substances tends to generate convection currents and this process is known as convection.

Since, particles in a solid are strongly held together due to which they are unable to move from their initial position.

Thus, we can conclude that the statement molecules in a solid are not free to move throughout its volume best explains why convection doesn't occur in solids.

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.