Category: Every Day Science

A:  Ultraviolet rays
B:  Infrared rays
C:  Gamma rays
D:  Radioactive rays

A:  The  Moon is between the Sun and the Earth
B:  The sun is between the Earth and the Moon
C:  The Earth is between the sun and the Moon
D:  The Earth casts its shadow on the Moon

A:  Light year
B:  Astronomical Unit
C:  Parsee
D:  Parallax

A:  4.5 billion years
B:  5.5 billion years
C:  6.5 billion years
D:  7.5 billion years

A:  Plant
B:  Comet
C:  Satelite
D:  None of these

A. Immunity 
B. Endocrine
C. Exocrine
D. All of above

a. Depth of invasion.
b. Clinical stage of the disease.
c. Location of the tumor.
d. All of the above.
e. None of the above.
Correct answer: D

a. ls common in children, negroes and Asia
b. Usually occurs between the ages of 50 and 60 years.
c. May arise de novo or in a benign pigmented naevus.
d. Always carries a bad prognosis.
e. May undergo spontaneous regression.
Correct answer: A

a- ls performed only in inoperable case
b- ls advisable whatever the stage and type
c- Can be replaced by irradiation
d- There is no need for surgical excision of LNs
Correct answer: B

a- Superficial spreading type
b- Amelanotic melanoma
c- Acral type
d- Nodular melanoma
Correct answer: A