Statement: The oceans are a storehouse of practically every mineral, including uranium. But, like most other minerals, it is found in extremely low concentrations-about three grams for 1000 tonnes of water.
Conclusions: I. Sea water contains gold.
II. The oceans harbour radiation hazards.

Options

A. if conclusion I follows
B. if conclusion II follows
C. if both I and II follow
D. if neither I nor II follows

Answer

D

Explanation

Neither of the conclusions can be said to definitely follow. .Practically every mineral. does not mean .every mineral. and hence gold may or may not be there. Similarly, a uranium content of 3 grams per 1000 tonnes of water may or may not harbour radiation hazard.