Question

II. Select the correct option from the list and fill in the blanks:


sludge, water conserving, underground, aquifer, water table, drip, hydrological cycle, water harvesting

1. Untreated sewage is called ...................


2. Careful and economic use of water is called ...................

3. The saturated zone of underground water is called as
......................

4. Water cycle is also known as
.....................​

Answer 1

Answer:

sludge,water conserving,aquifier water table dip ,water harvesting