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Worksheetssolubility and salinity
Total questions: 10
Worksheet time: 5mins
Consider the following statement relating to sea salinity.
1.ocean salinity depends upon Evaporation and precipitation.
2.Any change in temperature influences salinity.
3.Major source of sea salinity is terrestrial discharge by rivers.
Which of the statements given above are correct?
1 and 2 only
2 and 3 only
1 and 3 only
1,2 and 3
Which of the following sea has the highest salinity?
dead sea
Mediterranean sea
black sea
red sea
Ocean salinity on moving towards the pole
increases
decreases
remains the same
none
On equator salinity is low because of
heavy rainfall in equatorial regions
high humidity in equatorial regions
none
both
Salinity is expressed as the amount of salt in -----grams dissolved in sea water per
100 gm
20 gm
1000 gm
10000gm
Fish needs oxygen to survive. Goldfish in a crowded aquarium have a better chance of survival in cold water than in warm water because:
in warm water solubility of oxygen gas increases
in cold water solubility of oxygen gas increases
in warm water solubility of salt decreases
in cold water solubility of oxygen gas decreases
When someone open a bottle of carbonated drink,the pressure inside the bottle decreases. This results in
a decrease in the solubility of carbon dioxide gas
a increase in solubility of carbon dioxide gas
no change in the solubility
an increase in solubility of sugar in water
Keeping carbonated drinks in cold places
increases solubility of carbon dioxide in water
decreases solubility of carbon dioxide in water
does not affect the solubility of carbon dioxide
increases solubility of sugar in water
Solubility of gases depend upon pressure and temperature
an increase in pressure and temperature increases solubility of gas in water
a decrease in temperature and increase in pressure increases solubility of gas in water
an increase in temperature and decrease in pressure increases solubility of gas in water
increase in temperature doesnot affect the solubility of gas in water
As temperature increases solubility of solid
increases
decreases
does not get affected
solubility drops to zero
