Question

develop two alternative hypotheses and experiments on the problem of acid rain. in a narrative form

Answer 1

Acid rain happens when the pH of rain water is less than neutral - that is, when acid gets mixed in with it. This is a problem because it damages organisms it falls on like plants and microorganisms which are very sensitive to changes in pH.

Answer 2

How would go about setting up an experiment to test whether acid rain actually affects plants and microorganisms? What sort of hypothesis or statement would you set out to prove?

Answer 3

If trees are exposed to water that has a lower pH,,Certain types of trees are more likely to survive acid precipitation than others.What would be the experiment with those two hypothesis

Answer 4

Well you would need to test the effects of acid rain on resistant trees and susceptible trees. Then you should compare them. What hypotheses would you need to make before you did your experiment? - and kindly don't post the next question until we have finished with this one. I'd like to make sure you understand how to come up with hypotheses.

Answer 5

ok

Answer 6

i got the first one clearly but explain the second one

Answer 7

OK. So you want to know whether some trees do better when exposed to acid water than other trees.

You should probably do this by watering both kinds of trees with acid water. This is called your 'test group.' You should also water different trees of both kinds with normal water, called your control group. The control groups are important, because that way you know that both trees do the same with normal water - any differences between the test groups will be due to the presence of acid in the water.

That is how you should set up the experiment.

When you come up with a hypothesis, the hypothesis should focus on the significance of the results. What statements about the trees is the experiment supposed to test?