Subject :NSO Class : Class 6
Subject :NSO Class : Class 4
Ans 1:
Class : Class 4
plants can release carbon dioxide at night only tulsi plant does not release carbon dioxide
Post Your Answer
Subject :NSO Class : Class 7
Ans 1:
Class : Class 9
it is c because the silk has already started getting produces when it is larva
Ans 2:
Class : Class 9
really confusing ... the answer option d is correct in the sense that produces means extracting the silk or when it is ready to extracted by humans.
but option c is correct when produces means that when larva , itself after the fourth moult stage produces silk.
Ans 5:
Class : Class 8
The answer is C as at that time of a Silkworms life it will produce silk. With that silk they will make a cacoon and then they will become a Moth. While it is a Pupa it does not have the ability to make Silk hence the answer is C
Ans 8:
Class : Class 7
IT IS 'D' BECAUSE AT COCOON STAGE THE CATERPILLAR PRODUCES SILK FIBRES AND KNOTS AROUND IT AND COVERS HIMSELF.AFTER SOME TIME THE SILK FIBRES GETS HARDEN DUE TO THE GUMMY SUBSTANCE WHICH THE CATERPILLAR PRODUCES............IT IS CALLED "FIBROIN" WHICH IS MADE UP OF PROTEINS.ON HEATING THE COCOONS IN WATER THE SILK AGAIN BECOMES SOFT AND IS EXTRACTED FROM COCOONS........THIS PROCESS IS CALLED "REELING OF SILK"
Ans 9:
Class : Class 8
Answer should be C ,as only larvae in the life cycle of moth produce silk fibres , pupa or cocoon does NOT make silk fibres . They only undergo change in stage IN the silk fibres. They do not have the ability to produce silk fibres !
Ans 10:
Class : Class 8
answer is c because in the pupa stage the silk is already produced and in the larvae stage it produces silk when it is ready to go in the next stage of its life
Ans 13:
Class : Class 8
This is a trick question.. It says 'produced', not 'obtained'.. The larvae produce the silk fibre, then it is obtained from cocoon..
Ans 14:
Class : Class 8
No, the answer is 'C' only. In pupa stage the silk fiber is only obtained, but actually it is produced by larva and in question it is asked which stage produces fiber. Hence, the answer is 'C".
Ans 17:
Class : Class 7
ans:c,you may think d,but only in larval stage it produce silk in option d it is in a cocoon stage it cannot produce silk
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 8
Post Your Answer
Subject :NSO Class : Class 3
Post Your Answer
Subject :NSO Class : Class 4
Ans 3:
Class : Class 4
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Ans 4:
Class : Class 5
Answer will be A). It is because, humus is found on topsoil and not in deep layers of soil.
Post Your Answer
Subject :NSO Class : Class 8
Post Your Answer
Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
Hii,
This means that you gotta name the planet which takes more than one Earth year i.e. more than 365 days to complete one rotation on its axis...Answer is Jupiter
Post Your Answer
Subject :NSO Class : Class 8
Ans 1:
Class : Class 10
It says in the second test tube that there is a colourless solution of Y SO4and granules of Y! It should be colourless solution of X SO4 and granules of Y.