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
Explanation: The correct answer is (b) Magma. Magma is not a layer of the Earth. Magma is molten rock found beneath the Earth's surface, typically in the Earth's mantle or in chambers within the crust. It is a part of the Earth's interior, but it is not considered a distinct layer like the crust, mantle, and 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
