A boy took 3 pots and filled them with soil. He put two seeds in each pot and covered them with different materials. Pot 'A' was covered with an opaque glass; pot 'B' was covered with
a frosted glass; and pot 'C' was covered with clear plastic.
He watered the pots every day.
a. What did he observe in the three pots after 4-5 days?
b. What is the aim of this experiment?
c. In which pot(s) will the seed germinate? Give reasons