What happens to ice when it is placed in open air?
a) ice loss heat
b) ice gain heat
c) ice crystallize
d) all of these
When you put hand over water which is place on heater, your hands becoming watery? Which of the following process do you think is responsible for it?
a) sublimation
b) evaporation
c) melting
d) condensation
Have you ever noticed the fog on the mirror when take a hot shower in a bathroom? Which of the following process do you think is responsible for it?
a) sublimation
b) evaporation
c) melting
d) condensation
How much percentage of the water on earth is saline?
a) 3%
b) 71%
c) 2.5%
d) 97%
Explanation:Seawater, water that makes up the oceans and seas, covering more than 70 percent of Earth's surface. Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases.
Which of the following water is also called saline water?
a) fresh water
b) ice water
c) salt water
d) polluted water
Which of the following process is used to obtain salt from saline water?
a) sublimation
b) evaporation
c) melting
d) condensation
