Write out brief essays in answer to the following FOUR questions, worth 15 point

Question

Write out brief essays in answer to the following FOUR questions, worth 15 points each. Attention will be paid to factual content, as well as coherence and grammar. Use a separate page for each of your answers, even though they may well take up less than a page, and head your answer with the topic chosen, underlined, before you start your essay.  

1. Give three significant pros and three significant cons and your own conclusion for either: electricity from nuclear energy, or electricity from wind power.

2. Review the evidence for a strong anthropogenic component in ‘Climate Change’ and indicate three significant global effects expected from Climate Change by the end of this century. Comment on what measures could mitigate these effects.

3. Review some of the issues involved in one of the following environmental concerns: the Ozone Layer, or Air Pollution in Major Cities.

4. Discuss what is causing the pH of the oceans to change slightly and why this is a concern.

Explanation / Answer

1. Electrical energy from nuclear energy is costly due to the strating material it uses and also the maintenance costs for the plants are much higher. However, the electricity can be produced in copius amounts as per the need regularly. It is a non-green, non-sustainable process. On the other hand, wind energy is greener and environmentally process which is completely sustainable process. Howevere the energy produced by this method is not enough as per the regular need and falls short drastically.

2. Anthropogenic factor associated with climate change is say enhanced release of carbon dioxide gas into the atmosphere from coal fired power plants to name some. The influence of these are increased temperature, reduced water content in soil, reduced greener life on earth.

3. The environmental pollution due to depletion in zone layer has been of great concern to the scientists. The depletion of zone layer causes increase in earth's temperature and is caused by several resona such as air pollution, man pollution, etc. It is important for people to understand how to reduce the environmental pollution for a better future tomorrow.

4. The pH of ocean changes due to the temperature changes in the atmosphere. As the temperature goes up, the solubility of gases goes down and this reduces the pH of ocean drastically.

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