Hi everyone, I will give a presentation about recycling energy resources. We have all seen the world today adversely affected by our normal activities and the cause of global warming, the greenhouse effect. How can we only solve the problem? Fortunately, water, wind, sunlight are infinite energies. Why don't we use them as an alternative energy source? We can use it many times. Join hands to mobilize your relatives and friends that they can make our environment better.
