Question

Why is woollen yarn stronger than cotton yarn?

Answer 1

because the particles of woollen yarn has less inter particle spaces compared to cotton..

Answer 2

Answer:

Wool yarn tends to be spun with more fibers than a lot of cotton yarns, which can make the wool yarn stronger than cotton yarn. ...

Wool yarn makes a warmer fabric than cotton yarn because it traps more air between it's fibers than cotton and it doesn't absorb water as quickly as cotton.