7TH STANDARD SCIENCE, CHAPTER:3. ANIMAL FIBER. QUESTION AND ANSWERS EXPLANATION. LECTURE 17.

7TH STANDARD SCIENCE 

CHAPTER:3. ANIMAL FIBER. 

QUESTION AND ANSWERS EXPLANATION. LECTURE.17

THE CHAPTER ANIMAL FIBER HAS SOME QUESTIONS AS FOLLOWS.

Q1: IN THE SERICULTURE INDUSTRY WHICH STAGE OF THE SILKWORM DO THE WEAVERS BUY? WHY?

THE WEAVERS BUY THE COCOON STAGE OF THE SILKWORM BECAUSE THE COCOON IS THE BOUNDED BODY OF  THE SILK FIBER. THE COCOONS ARE BOILED AND KILLED THE LARVAE PRESENT INSIDE THEM BY FOLLOWING A METHOD CALLED STIFLING. THEN ONLY THE WEAVER GETS THE FINE FIBER. OTHERWISE, THE LARVAE INSIDE THE COCOON WILL GROW ADULT AND BREAK THE FINE SILK FIBER THEREFORE THERE WILL BE NO USE OF THE SILK FIBER.

Q2: WHICH CITY OF TELANGANA IS POPULARLY KNOWN AS SILK CITY?  

IN TELANGANA STATE THE FAMOUS SILK WEAVING CENTER IS POCHAMPALLI. AS IT IS FAMOUS FOR WEAVING SILK FABRIC, IT IS KNOWN AS THE SILK CITY OF TELANGANA.

TO FIND THE ANSWERS TO THE FOLLOWING QUESTIONS PLEASE WATCH THE ABOVE VIDEO. 

Q3: PREPARE A FLOW CHART OF THE LIFE CYCLE OF SILKWORMS. 

Q4: WHY SHOULD WE STIFLE THE COCOON?

Q5: WHAT HAPPENS IF WE DON'T BOIL THE COCOONS?