They place three thermometers in the sunlight and cover each of them with a sheet of paper (one black, one white and one with cellophane). They leave the sheets of paper in the same area, each with the same amount of sunlight for exactly 20 minutes. At the end of the experiment, they check the thermometer readings to see which sheet of paper is the “hottest” and which is the “coolest.” 3a. Identify the “independent variable” in this experiment.

sorry idk the answer well to you i have a explaination

explanation: a formula which shows the arrangement of atoms in the molecule of a compound

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a

the answer is 0.8m.

by: nicholas