9. Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words.
(D) 1 : Thorough washing (A) 1 : Keeps warm
2 : Animal fibre 2 : Its leaves are eaten by silkworms
3 : Long thread like structure 3 : Hatches from egg of moth
|1. SCOUR||1. WOOL|
|2. SILK||2. MULBERRY|
|3. FIBRE||3. CATERPILLAR|