II. True/False:
7x127
Solar energy is converted into chemical energy during photosynthesis ( >
15. The tongue helps in mixing food with saliva ( )
Tooth decay is caused by the presence of a base ( )
Iron pipes coated with zinc do not get rusted easily ( )
A wooden spoon is dipped in a cup of ice cream Its other end becomes
cold ( )
19. Plants carry out photosynthesis only during the day and respiration only at
night()
20. Rain is the ultimate source of water. ( )
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