Who first discovered how blood circulates in the human body?

Vitamin A is found in the____________?

A. Green vegetables 
B. white vegetables
C. Yellow vegetables
D. Red vegetables

The brain of human adult weighs about_________?A. 1200 – 1300 gm
B. 1600 – 2000 gm
C. 500 – 800 gm
D. 100 – 200 gm

The adult human brain weighs about 3 pounds (1,300-1,400 g). The adult human brain is about 2% of the total body weight. The average human brain is 140 mm wide. The average human brain is 167 mm long.

 

Animals use nitrogen in the form of_________?

A. Nitrogen
B. Nitrates
C. Nitrites
D. None of Above

The theory of Expanding Universe was first propounded by____________?

A. Einstein
B. Newton
C. Gahleo
D. Hubble