The ability of the Eye to see in the dark, is due to the production of a purple pigment known as___?
Nitrogen occurs in plant and animals in the form of ______?
Almost identical eclipses occur after 18 years and 11 days. This cycle is known as_____?
A: Total Eclipse Cycle
B: Partial Eclipse cycle
C: Saros Cycle
D: None of the above
Most abundant color in Earth is____?
LPG consists of mainly:______?
A: Ethane, Hexane and Nonane
B: Methane, Ethane and Hexane
C: Methane, Hexane and Nonane
D: Methane, Butane and Propane
Methane, Butane and Propane
The average adult has a blood volume of about _____ liters.