For water purification, we use?

A. Chlorine
B. Bromine
C. Plants
D. Young MAN

The human blood is divided into__________ groups?

A. Two groups
B. Three groups
C. Four groups
D. Five groups

A man can survive without food for at least?

A. One month
B. Two month
C. Three month
D. Four month

The muscles, tissues and blood all are made up of____________?

A. Carbohydrate
B. Proteins
C. Vitamins
D. Fats

One gram of carbohydrates give energy of the amount?

A. 2 k calories
B. 4.1 k calories
C. 6.3 k calories
D. 8.0 k calories

What amount of fats give energy of 9.3 K Calories?

A. 0.5 gram
B. 1.0 gram
C. 2.0 gram
D. 4.1 gram

The amount of energy in wheat is__________?

A. 100 k calories/100 gram
B. 245 k calories/100 gram
C. 348 k calories/100 gram
D. 490 k calories/100 gram

The major part of natural gas, petroleum and coal consists of?

A. Carbon
B. Chlorine
C. Cfc
D. Methane

What is used in making of alloys?

A. Gypsum
B. Granite
C. Chromium
D. Lime-stone

The large plates of solar pannels are painted?

A. Red
B. White
C. Yellow
D. Black