Polly and Vivian: Oral report - Our world problem is the water pollution. Our idea is to make video tapes that are teaching people to help the earth. And do not throw waste into the water. We'll sell it to everyone. It cost 200 NT dollars. And all of the money can make a sun power machine that can suck all the waste in the water. It will cost 2000 N.T. dollars. And all of that money can make a bigger machine that can also suck all of the waste in water. Or all of the machines we can sell to the government. And all of the money we can give to the poor people. That is one part of our plan.