1.
Reading of a Barometer going down is an indication of:___________?

2.
One fathom is equal to:__________?

3.
What are the metal bearing rocks called?

4.
Soil pollution is caused by:_________?

5.
Radiations are harmful as it:___________?

6.
The practical problem in Hydrogen production is it:______________?

7.
The number of ions produced by [Pt(NH3)]Cl2?

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