Identify the one which is not a natural fibre.
Silk
Wool
Polyester
Jute
The fibers like polyester, nylon and rayon are called
Synthetic fibers
Artificial fibers
Natural fibers
Cotton fibers
Instead of _____ we can use things made of cloth, jute, coir and paper.
Plastics
Water
Fibres
___________ is obtained from silk worms.
Silk fibers
Cellulose
The clothes which are made from the fur of the animals.
Woollen
Cotton
Nylon
We can prepare soap at home proving ________ can be brought from chemical suppliers.
HNO3
NaOH
AgNO3
CH3COOH
Water bottles are made up of
Polythene
Styrene
PVC
Bakelite
___________ is a mixture of sand, cement, gravel and water in correct proportion.
Sand
Cement
Limestone
Concrete