Refer to the given Venn diagram. Identify X, Y and Z and select the correct statement regarding them.
AThe process of changing Y into X is called freezing.
BThe process of changing X into Y is called sublimation.
CThe process of changing Z into X is called evaporation.
DThe process of changing Z into X is called condensation.
x can be solid and y can be gas,and this process is called sublimation ,so option b is correct,according to the explanations of solid,liquid and gas.
Mukta conducted an experiment in which two potato tubers X and Y (of equal size) were peeled and a cavity was made in each of them. X was boiled while Y was not. The cavities in the both tubers were filled with sugar solution and they were then placed in beakers containing distilled water. Select the correct statement regarding the result of this experiment.
A Level of sugar solution increased in both potato tubers X and Y due to osmosis.
B Level of sugar solution decreased in both potato tubers X and Y due to osmosis.
C Level of sugar solution increased in only potato tuber X due to osmosis.
D Level of sugar solution increased in only potato tuber Y due to osmosis.
Tricky question i thought it was A
The diagrams below show the samples of sticky tapes that were left with their sticky surfaces exposed to air at different locations X, Y and Z in a school.
From the amount of dust stuck on the sticky surfaces, select the area which has the maximum level of air pollution.
D Cannot be determined
hard to EXPLAIN my
Refer to the given picture which shows our solar system and select the INCORRECT option.
AQ is known as the evening star and P is the smallest planet.
BR is a rocky planet while S is made up of gases.
CT is the largest planet and R is also known as blue planet.
DW has 14 moons while Q is the hottest planet.