A wooden box would not allow the light to pass through because:
a) It is opaque
b) It is transparent
c) It is luminous
d) It is translucent
Which of the following is not a layer of Earth.
a) Crust
b) Magma
c) Mantle
d) Outer core
When theoretic area increases the pressure on the lungs decreases so the air:
a) Move from lungs to outside
b) Moves into the lungs
c) Stay in the lungs
d) Moves from lungs to outside as well stay in the lungs
The outer layer of the eyeball that forms the white color of the eyes is:
a) Iris
b) Retina
c) Sclera
d) Pupil
One of the following is absent in animal cells.
a) Cellulose
b) Protein
c) Water
d) Salts
Which of the following is a compound?
a) CI
b) C
c) O2
d) NaCl
