Really need help with science homework

This is not worth any marks and doesn't even have to be handed in but i am really struggling with this so any help would be greatfull thank you

1) In gas chromatography, the distribution of a gas between the liquid and gas phases is determined by the:
a. Density of the gas relative to the liquid
b. Volume of the gas in the container
c. Mass of the gas relative to the liquid
d. Solubility of the gas in the liquid
e. Density of the liquid relative to the gas

2)Which of the following is not part of a gas chromatograph?
a. Injection port
b. Column
c. Slit
d. Detector
e. Recorder

3)If the laboratory can piece broken glass from a window or headlight together, then the evidence has _____________ characteristics
a. Indentification
b. Comparative
c. Individual
d. Class
e. None of the above

4)The recorder of a spectrophotometer measures the:
a. Rf value of light
b. Retention time of light
c. Absorption of light at specific frequencies
d. Refractive index of light
e. Speed of light