SECTION: B
02. a) Define Matter and all the three States of Matter. Also explain the process
change in state of matter with two examples each
OR
b) Write a detailed note on AIR, What is the composition of air? Write the
importance and uses of components of air. What will happen if the percentage
of Carbon dioxide increases in air?
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Answer:
a)Matter is anything that takes up space and has volume. the change in
The state of matter occurs due to the processes like sublimation, melting, evaporation, condensation, etc.
Eg: 1)Sublimation of naphthalene balls changes its state of matter from solid to gaseous.
2)Melting of ice changes its state of matter from solid to liquid.
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