1- Earth is facing fatal issues that may change the planet to a completely different planet where the life for some living organisms will be almost impossible. One of these issues is the unbalance amount of some important elements on earth’s surface such as carbon, nitrogen, phosphorus and sulfur. In your own words, write about the negative impacts of the excessive amount of these 4 elements with providing the sources of each one.
2- In this course you have learned about the conservation of energy and the conservation of matter. So, what is the importance of conservations to the earth and its environment? (do not exceed 2 pages).
3- The movement of wind and water, the heat and light of the sun, the carbohydrates in plants, and the warmth in the Earth—all are energy resources that can supply our needs in a sustainable way. A variety of technologies are used to convert these renewable resources into electricity. Each comes with its own unique set of benefits and challenges; collectively, they represent our best hope in the fight against climate change.
Choose one of these renewable resources and mention the following:
a) How does this renewable resource work?
b) What are the advantages and disadvantages of this resource of energy?
c) Why we cannot rely on this resource as a major source of energy?
Sample Solution
