Answer:
a. time (on the x axis)
b. the product formed - molecules/minute (on the y axis)
Explanation:
The independent variable is the one you control while carrying out the experiment, you can adjust for it as needed and how much ever needed. The dependent variable is the one which you cannot control or vary at you own will during the experiment, it is essentially the data you collect from running the experiment.
Oxygen did.....filling up space
The correct option is "D", "<span>The density of seawater".
As you are measuring the</span><span> amount of mass in a volume of water and if we look at the definition of density, it is the mass per unit volume.
D = m/v
where m is the mass of an object and v is the volume.
Thus, d is the correct option.</span>
<span>
Oxygen will diffuse from an area of higher concentration (outside the cell) to an area of lower concentration (inside the cell). </span>
