The major constituent of vinegar is

(a)

citric acid

(b)

acetic acid

(c)

oxalic acid

(d)

hydrochloric acid

Which of the following is transmitted through air?

(a)

Tuberculosis

(b)

Meningitis

(c)

Typhoid

(d)

Cholera

One of the means of indirect transmission of a disease is

(a)

sneezing

(b)

coughing

(c)

vectors

(d)

droplet infection

Mosquito borne viral diseases are

(a)

malaria and yellow fever

(b)

dengue and chikungunya

(c)

filariasis and typhus

(d)

kala azar and diptheria

Which one of the following is a pair of viral disease?

(a)

Filariasis, AIDS

(b)

Common cold, AIDS

(c)

Dysentry, Common cold

(d)

Typhoid, Tuberculosis