During which process of energy exchange does cold air displace warmer air?

If you have “caries” then which doctor you have consult?A. Dermatologist
B. Orthopaedist
C. Dentist
D. Nurologist

 

Which of following is not a digestive enzyme in human body?

A. Pepsin
B. Trypsin
C. Gastrin
D. Ptyalin

Gravity setting chambers are used in industries to remove ________?

A. NOx
B. SOx
C. CO
D. Suspended particulate matter

“Father of Optics” is the title given to__________?

A. Ibn-al-Haitham
B. Ibn-e-Sina
C. Al-Kandi
D. Al-Biruni

The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called ___________?

A. Aphelion
B. Perihelion
C. Perigee
D. Apogee
E. None of these

The vitamin Folate works together with __________ to produce new red blood cells?

A. Vitamin D
B. Vitamin A
C. Vitamin B-12
D. None of the above