Fossil fuels are the main sources of energy in many countries. But alternative source are being encouraged. Is this a positive or negative trend?

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Fossil fuels are the main sources of energy in many countries. But alternative source are being encouraged. Is this a positive or negative trend?

Over the last two century an ever increasing proportion of our energy has come from fossil fuel like coal, gas and oil. While demand for energy rises, these resources are running out and scientists are exploring potential of alternative energy sources for the future. Though alternative energy sources have some drawbacks, but I think the advantages outweigh their disadvantages to a greater extent.

To begin with, scientists are still looking for the solution about how to reduce the cost related with alternative energy production. But apart from this all the other weaknesses of alternative ene...

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2013-07-14 habiba 93 view
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Sentence: This gases are responsible for the global warming and climate change.
Description: A determiner/pronoun, singular is not usually followed by a noun, plural, common
Suggestion: Refer to This and gases

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Score: 8.5 out of 9
Category: Excellent Excellent
No. of Grammatical Errors: 1 2
No. of Spelling Errors: 0 2
No. of Sentences: 13 15
No. of Words: 330 350
No. of Characters: 1783 1500
No. of Different Words: 201 200
Fourth Root of Number of Words: 4.262 4.7
Average Word Length: 5.403 4.6
Word Length SD: 2.866 2.4
No. of Words greater than 5 chars: 140 100
No. of Words greater than 6 chars: 96 80
No. of Words greater than 7 chars: 69 40
No. of Words greater than 8 chars: 57 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 25.385 21.0
Sentence Length SD: 12.579 7.5
Use of Discourse Markers (%): 0.692 0.12
Sentence-Text Coherence: 0.379 0.35
Sentence-Para Coherence: 0.574 0.50
Sentence-Sentence Coherence: 0.096 0.07
Number of Paragraphs: 4 5