Questions

The slot covers on a computer reduce the dust build up inside the computer. So the slot covers should be present in proper place.The missing covers can disrupt the airflow design of the case and cause overheating problems.

The possessive form of pronoun ‘one’ is ‘oneself’. So the phrase ‘with himself’ needs to be replaced with ‘with oneself’ to make the sentence grammatically correct. Thus, the correct formation would be, ‘One is often pleased with oneself’.

Blueberries are the saddest fruits.

Reason ::

In English some colors are associated with feelings. Blue is associated with sadness. When you "feel blue" it means that you are feeling sad.

Hence, as blueberries has blue in its name it indicates that that is the saddest fruit in logic.

The regional rural bank is not allowed to trade in over-night borrowing market.Scheduled commercial banks (excluding RRBs), co-operative banks (other than Land Development Banks) and Primary Dealers (PDs), are permitted to participate in call/notice money market both as borrowers and lenders.Overnight borrowing market, also known as call market, generally involves borrowing and lending of funds for one day and generally takes place against government securities.