Excess of which of the following in the blood causes the ‘Blue Baby Syndrome’ disease?

Which of the following disease is caused by a virus?

Which of the following disease is not caused by a bacteria?

The ‘blue baby’ pollution disease is due to the excessive presence of which of the following in drinking water?

Wilt of Pigeon pea is a disease caused which of the following?

AIDS is the short form of which of the following diseases?