The speed of light is __________?

“Rancidity produced in butter can be decreased by adding quinoline to the butter”. This statements shows that _______________?

A. Nothing is impossible
B. Quinoline is an inhibitor
C. Quinoline is a catalyst
D. Quinoline is an activator

Which of these is NOT an example of a renewable energy source?A. Wind energy
B. solar
C. Coal
D. Hydroelectric power

 

Corona disease is a ________  disease?

A. Infectious diseases
B. Deficiency disease
C. Hereditary disease
D. Physiological diseases

Which of the following is not an enzyme?

A. Chemotrypsin
B. Secretin
C. Pepsin
D. none

In human body there are_________________kinds of bones?

A. 3
B. 4
C. 5
D. 6

TYPES OF BONES:

Bones of the skeleton can be grouped into the following major types: long, short, flat, and irregular. Each type has a somewhat different construction pattern.

1. Long Bones: The basic structure of a long bone is illustrated in figure 4-1. Example: femur.
2. Short Bones: The short bones, such as those of the wrist and feet, have a thin layer of compact bone surrounding an inner mass of spongy bone. Example: carpal bones.
3. Flat Bones: The flat bones are constructed with two plates of compact bone, which enclose between them a layer of spongy bone. The spongy bone is richly supplied with blood vessels and red marrow. Example: the cranial frontal bone.
4. Irregular Bones: The irregular bones are those that do not fit into the three categories above. Example: a vertebra.

Heat exchanger tubes are never made of:

A. Plain Carbon Steel
B. Stainless Steel
C. Lead
D. Copper