The color which we see when our eyes are closed?
A. Black
B. Grey
C. Eigengrau
D. None of these
A. Black
B. Grey
C. Eigengrau
D. None of these
A. Copper
B. Chromium
C. Lead
D. Cadmium
A. Medicine
B. Fertilizer
C. Salt
D. Glass
A. oxygen and hydrogen
B. oxygen, hydrogen, acetylene and nitrogen
C. oxygen, acetylene and argon
D. oxygen and acetylene
A. Methane
B. Nitrous oxide
C. Carbon dioxide
D. Hydrogen
A. Blood
B. Lungs
C. Kidney
D. pancreas
A. Sodium nitrate
B. Zinc sulfate
C. Sulphuric acid
D. Calcium carbonate
A. 100
B. 400
C. 1000
D. 4000
A. ease the process of cooking
B. increase the taste
C. produce small amount of hydrochloric acid required for digestion
D. inclease solubility of food particles in water
A. Lens
B. Prism
C. Mirror
D. Slabs