Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?
A. Carbon dioxide
B. Chlorofluorocarbons
C. Nitrogen oxides
D. Methane
Fuse wire is made of_____________?
A. 63% tin and 37% lead
B. 63% lead and 37% tin
C. 63% tin and 37% aluminum
D. 63% lead and 37% aluminum
The approximate intensity level of the sound which can cause damage to the ear drum is?
A. 20 dB
B. 60 dB
C. 100 dB
D. 160 dB
What is the smallest unit of heredity?
A. Chromosomes
B. Gene
C. Nucleotides
D. none
When a patient’s immune system becomes reactive to a drug, this is an example of?
A. Super infection
B. Drug resistance
C. Allergy
D. none
The shape of the external ear is due to____________?
A. Elastic cartilage
B. Fibrocartilage
C. Articular cartilage
D. none
Which of these is not a region of the spinal cord?
A. Thoracic
B. Pelvic
C. Lumbar
D. none
The damage to the_________nerve could result in the defect of the eye movement:
A. Optic
B. Trigeminal
C. Abducens
D. none
The autonomic nervous system innervates all of these except?
A. Cardiac muscles
B. Skeletal muscles
C. Smooth muscles
D. none
Serum if blood plasma minus its?
A. Calcium ions
B. Clotting proteins
C. Globulins
D. none