<span>polyethylene or polythene are the main ingredients </span>
Awnser: independent variable or control
Explanation:
Answer:
Pressure
Explanation:
The variable that describes how often the particles in a sample of gas collides with each other and the walls of the container is the pressure.
The pressure of a gas is the combined force with which the gas molecules bombard a unit area of the wall of the container i.e the sum of all the tiny pushes on the unit area of the wall of the container.
The various units of gas pressure atmosphere, millimeters of Hg, torr, pascal, newton per meter squared.
- Temperature is the degree of hotness or coldness of a body
- Volume is the space the gases occupies.
Theory can be changed to explain new observations or experimental results
Option one ( which is Aluminium Carbonate ) is the answer
