In the past century, the steady growth of the human population and the corresponding increase in agriculture and pesticide use have caused much harm to wildlife in the United States —birds in particular. Unfortunately for birds, these trends are likely

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In the past century, the steady growth of the human population and the corresponding increase in agriculture and pesticide use have caused much harm to wildlife in the United States —birds in particular. Unfortunately for birds, these trends are likely to continue, with the result that the number of birds in the United States will necessarily decline.

First, as human populations and settlements continue to expand, birds' natural habitats will continue to disappear. Forests, wetlands, and grasslands will give way to ever more homes, malls, and offices. As the traditional areas suitable for birds keep decreasing, so will the size of the bird populations that depend on those vanishing habitats.

Second, agricultural activities must increase to keep pace with the growing human population. The growth of agriculture will also result in the further destruction of bird habitats as more and more wilderness areas are converted to agricultural use. As a result, bird populations in rural areas will continue to decline.

Third, as human settlements expand and agriculture increases, the use of chemical pesticides will also increase. Pesticides are poisons designed to kill agricultural and home garden pests, such as insects, but inevitably, pesticides get into the water and into the food chain for birds where they can harm birds. Birds that eat the poisoned insects or drink contaminated water can die as a result, and even if pesticides do not kill birds outright, they can prevent them from reproducing successfully. So pesticides have significantly contributed to declines in bird population, and because there will continue to be a need to control agricultural pests in the future, this decline will continue.

Both the reading and the lecture discuss the effect of the growth of the human population on the number of birds. The reading claims that the growth of human population will result a decline in the number of birds in the United states, and provides three reasons of support. However,in the lecture, the professor says that the reading's explanations are unconvincing and refutes each of the reading's reason.

First, the reading avers that since the growing population of human needs more land to settle, birds' natural habitats will continue to disappear and causes a decrease in their population. The professor opposes this idea by saying that this might be true for some birds, but there are some other birds that this change increased their population like pigeons. She says that this claim is not true because the decline is not uniform, some birds show a decline while others show a growth in their population.

Second, the reading states that the need of increasing agricultural activities will result in the further destruction of birds' habitats. The professor rejects this by saying that at least in the USA less and less lands have been used each year for agriculture. She says that the new approach in agriculture is producing high yield products, which could produce more food in less land.

Finally, the reading pushes forth the idea that chemical pesticides are harmful for birds. The professor contradicts this point by saying that it is true that chemical pesticides are toxic for birds but it is incorrect to apply this to the future. Since we realized that pesticides are toxic, scientist made two changes; first: producing less toxic pesticides, second: trying to produce pest-resistant crops. Therefore, pesticides will not be harmful for birds in the future.

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but there are some other birds that this change increased their population like pigeons.
but for some other birds, this change increased their population like pigeons.

Attribute Value Ideal
Score: 25 in 30
Category: Very Good Excellent
No. of Grammatical Errors: 1 2
No. of Spelling Errors: 0 2
No. of Sentences: 13 12
No. of Words: 294 250
No. of Characters: 1454 1200
No. of Different Words: 134 150
Fourth Root of Number of Words: 4.141 4.2
Average Word Length: 4.946 4.6
Word Length SD: 2.497 2.4
No. of Words greater than 5 chars: 99 80
No. of Words greater than 6 chars: 73 60
No. of Words greater than 7 chars: 44 40
No. of Words greater than 8 chars: 34 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 22.615 21.0
Sentence Length SD: 5.554 7.5
Use of Discourse Markers (%): 0.769 0.12
Sentence-Text Coherence: 0.4 0.35
Sentence-Para Coherence: 0.647 0.50
Sentence-Sentence Coherence: 0.189 0.07
Number of Paragraphs: 4 4