Question

(b) Write present participle of the
verb-'sing'
1) sings
2) sang
3)sung
4)singing​

Answer 1

Answer:

In addition to its use in cleaning products, sodium carbonate is used in:

Chemical manufacturing.

Food (e.g., anticaking agent)

Glass manufacturing.

Personal care products (e.g., bubble bath, toothpaste, bath salts and soaks, and scrubs)

Pulp and paper products.

Swimming pool maintenance (to adjust the pH)

Answer 2

● Present participle of sing is singing.