Use the pH color scale. It shows acidity level of both acids and bases. You dip one of the pH strips into whatever liquid you choose, and then compare the new color of the pH strip to the colors on the scale. This will tell you the level of acidity. pH scale can be found below. As you can see, the brighter colors are more acidic than the darker and duller colors.
The part of the experiment in which the experimental factor has been removed is referred to as <span>the independent variable. </span>The dependent variable<span> is the element which is being measured in an experiment or evaluated in a mathematical equation.</span>
There was no sunlight, in one way or another sunlight is the source of almost all life on the surface of the earth
The answer is A (1) Prokaryotes
