According to rules, the colour of football goal post is?

The landing arena of High Jump will be

A. 5x4mts

B. 5x5mts

C. 5 x 3 mts

D. 5 x 6 mts

Blood is purified in the human body by?

A. Carbon dioxide

B. Nitrogen

C. Oxygen

D. Hydrogen

Name the vitamin which is water soluble

A. Vitamin A

B. Vitamin B

C. Vitamin E

D. Vitamin K

Salivary g]and produces

A. Ptyalin

B. Adrenal

C. Pepsin

D. Renin

Who is responsible for sanitation /cleanliness in schools?

A. Principal

B. Cleaning worker

C. Teacher and students

D. All of the above