Question

Fill in the blanks.
1. Calcium and magnesium sulphates cause
hardness in water.
2. Water that collects on the surface of earth is called
3.
The purest form of water is
4.
hardness can be removed on boiling.
5. The water cycle is also known as the
cycle.
​

Answer 1

Answer:

1 true

2 pure water

3.sea water

4.true

5.hydrologic cycle