Questions

The least penetrating power ray is Alpha rays.

The foods that are good source of fat and incredibly healthy to the body ar fatty fish, eggs, nuts, cheese, avocados, dark chocolates, etc...

Troposphere is the most densest layer and is the lowest atmospheric layer.

Market failure arises because it is not possible for the market to correctly weight cost and benefits in a situation in which some of the cost is completely unaccounted.

Demand-side market failures happen when demand curves do not reflect consumer’s full willingness to pay for goods or services.

Supply-side market failures occur when supply curves do not reflect the full cost of producing a good or services.

Since, the sentence starts talking about the ultimate hope; it should be followed by the statement that is talking about the hope. So, only statement Q connects with the given statement. Also, in the options there is a single option with starting statement as Q. The correct formation would be, ‘The ultimate hope that the destructive nature of weapons will force the nations to give up war has not been fulfilled.’