The snow on the mountains does NOT melt all at once when it is heated by the sun because:

A. it becomes very hard
B. it reflects most of the heat from the sun
C. it has a low specific heat capacity
D. it has a high latent heat of fusion

Submitted by: Abid Hussain

At mountain, there is very large amount of snow i.e. m is very very high.
And for melts of ice, latent heat of fusion is required.
Latent heat of fusion = mass×Lf

And since very very large mass is present so very high amount of heat is required which can’t be delivered by sun at once.

Related Mcqs:

Comets are made mostly of ice and dust. As comets get close to the sun, they start to “melt” and release what?
A. Steam and dust
B. Gas and dust
C. Steam, gas and dust
D. None of the above

Submitted by: Muhammad Abdullah
As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what?
A. “coma” around the comet’s nucleus and a long tail that points away from the sun
B. “coma” that points away from the sun and a long tail around the comet’s nucleus
C. Only “coma” around the comet’s nucleus
D. Only a long tail that points away from the sun

Submitted by: Muhammad Abdullah
Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________?
A. Conduction
B. Convection
C. Radiation
D. Reflection
E. None of these
At what temperature does silver melt?
A. 275 °C
B. 327 °C
C.961.8 °C
D. 100 °C

Submitted by: ABDUL HAYEE
Earth is closest to the sun every year in early ______________, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early __________________, during our Northern Hemisphere summer.
A. January – July
B. June – December
C. July – January
D. December – June

Submitted by: Mansoor Ul Haque
When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ?
A. These gases are not present
B. These gases are like plasma
C. These gases are frozen
D. These gases are volatile

Submitted by: Muhammad Abdullah
During winter in cold countries, the __________ is mixed to melt the ice on the icy roads.
A. Salt
B. Chlorine
C. Carbon dioxide
D. Water
The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?
A. Conduction of heat upward from a hot surface
B. Convection from a hot surface
C. Absorption of infrared energy that has been radiated from the surface
D. Heat energy from the earth’s interior

Submitted by: Mansoor Ul Haque
How long does it take for the moon to orbit the earth once?
A. 26.3 days
B. 27.3 days
C. 28.3 days
D. 30.3 days

Submitted by: Ch.Naeem Kamboh
Evaporation from ice and snow is known as___________?
A. evaporation
B. sublimation
C. hydrogenation
D. insolation

Submitted by: FAZAL ULLAH