Question

give reason jams jelles and squashes are preserved by sugar​

Answer 1

Jams, jellies and squashes are preserved by sugar. Sugar reduces the moisture content which inhibits the growth of bacteria which spoil food.

Answer 2

$\bold{Answer}$

$\bold{Jams, \ jellies \ and \ squashes}$are preserved by sugar. Sugar reduces the moisture content which inhibits the growth of bacteria which spoil food.