Question : _______ is a disease which is transmitted by the Aedes mosquito, which lays eggs in water-logged places and multiplies over time.

Option 1: Diarrhoea

Option 2: Elephantiasis

Option 3: Dengue

Option 4: Malaria

Question : Hepatitis is a

Option 1: heart disease

Option 2: lung disease

Option 3: liver disease

Option 4: kidney disease

Question : Rama is suffering from chickenpox. What type of disease is it?

Option 1: Fungal disease

Option 2: Hereditary disease

Option 3: Viral disease

Option 4: Bacterial disease

Question : Vector of Kala-azar is:

Option 1: Anopheles mosquito

Option 2: Culex mosquito

Option 3: Tse-Tse fly

Option 4: Sandfly

Question : Vegetables are cooked in less time by adding a pinch of salt while cooking because:

Option 1: boiling point of water increases

Option 2: latent heat of vaporisation of water decreases

Option 3: latent heat of vaporisation of water increases

Option 4: boiling point of water decreases

Question : An oil drop spreads over water because:

Option 1: oil is lighter than water.

Option 2: oil is more viscous.

Option 3: oil does not mix with water.

Option 4: surface tension of oils is much smaller than that of water.