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Millions of years ago, the remains of plants and animals decayed and built up in thick layers. This decayed matter from plants and animals is called organic material it was once alive. Over time, the mud and soil changed to rock, covered the organic material and trapped it beneath the rock. Pressure and heat changed some of this organic material into coal, some into oil (petroleum), and some into natural gas tiny bubbles of odourless gas. The main ingredient in natural gas is methane, a gas (or compound) composed of one carbon atom and four hydrogen atoms. In some places, gas escapes from small gaps in the rocks into the air; then, if there is enough activation energy from lightning or a fire, it burns. When people first saw the flames, they experimented with them and learned they could use them for heat and light. Scientists and engineers explore a chosen area by studying rock samples from the earth and taking measurements. If the site seems promising, drilling begins. Some of these areas are on land but many are offshore, deep in the ocean. Once the gas is found, it flows up through the well to the surface of the ground and into large pipelines. Some of the gases that are produced along with methane, such as butane and propane (also known as 'by-products'), are separated and cleaned at a gas processing plant. The by-products, once removed, are used in a number of ways. For example, propane can be used for cooking on gas grills. Because natural gas is colorless, odorless and tasteless, mercaptan (a chemical that has a sulfur like odor) is added before distribution, to give it a distinct unpleasant odor (smells like rotten eggs). This serves as a safety device by allowing it to be detected in the atmosphere, in cases where leaks occur.
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Introduction
  • Is the main idea (i.e., the writer's opinion of the story title) stated clearly?
  • Is the introductory paragraph interesting? Does it make the reader want to keep on reading?
Body Paragraph
  • Does each body paragraph have a clear topic sentence that is related to the main idea of the essay?
  • Does each body paragraph include specific information from the text(including quoted evidence from the text, if required by the instructor)that supports the topic sentence?
  • Is there a clear plan for the order of the body paragraphs (i.e., order of importance, chronology in the story, etc.)?
  • Does each body paragraph transition smoothly to the next?
Conclusion
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  • Are the supporting ideas summarized succinctly and clearly?
  • Is the concluding paragraph interesting? Does it leave an impression on the reader?
Overall Essay
  • Is any important material left unsaid?
  • Is any material repetitious and unnecessary?
  • Has the writer tried to incorporate "voice" in the essay so that it has his/her distinctive mark?
  • Are there changes needed in word choice, sentence length and structure, etc.?
  • Are the quotations (if required) properly cited?
  • Has the essay been proofread for spelling, punctuation, grammar, etc.?
  • Does the essay have an interesting and appropriate title?
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Essay On "Energy" And "Natural Gas"

Words: 308    Pages: 1    Paragraphs: 6    Sentences: 17    Read Time: 01:07
Highlight Text to add correction. Use an editor to spell check essay.
              Millions of years ago, the remains of plants and animals decayed and built up in thick layers. This decayed matter from plants and animals is called organic material it was once alive. Over time, the mud and soil changed to rock, covered the organic material and trapped it beneath the rock.
             
              Pressure and heat changed some of this organic material into coal, some into oil (petroleum), and some into natural gas tiny bubbles of odourless gas. The main ingredient in natural gas is methane, a gas (or compound) composed of one carbon atom and four hydrogen atoms.
             
              In some places, gas escapes from small gaps in the rocks into the air; then, if there is enough activation energy from lightning or a fire, it burns. When people first saw the flames, they experimented with them and learned they could use them for heat and light.
             
              Scientists and engineers explore a chosen area by studying rock samples from the earth and taking measurements. If the site seems promising, drilling begins. Some of these areas are on land but many are offshore, deep in the ocean.
             
              Once the gas is found, it flows up through the well to the surface of the ground and into large pipelines. Some of the gases that are produced along with methane, such as butane and propane (also known as 'by-products'), are separated and cleaned at a gas processing plant. The by-products, once removed, are used in a number of ways. For example, propane can be used for cooking on gas grills.
             
              Because natural gas is colorless, odorless and tasteless, mercaptan (a chemical that has a sulfur like odor) is added before distribution, to give it a distinct unpleasant odor (smells like rotten eggs). This serves as a safety device by allowing it to be detected in the atmosphere, in cases where leaks occur.
Environment Essay 
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