Question

Please answer this... ​

Answer 1

Answer:

Rain water harvesting is collection and storage of rain water that runs off from roof tops, parks, roads, open grounds, etc

Answer 2

Step-by-step explanation:

-7/60-(3/20)

=-7/60-3/20

=-7/60-3×3/20×3

=-7/60-9/60

=-7-9/60

=-16/60

or -16/60

-7/30

hope it was help full