The rivers that feed a particular inland sea were diverted to irrigate a nearby desert so that the desert could be used to cultivate cotton. uncontrolled irrigation resulted in a drastic decrease in the size of the sea, and eventually the sea dried up completely. many aquatic populations were lost, and the land left behind was covered with salt.

which of the following solutions would best restore the ecosystem and prevent it from becoming a desert?
a.
direct sewage runoff water from local cities into the ecosystem to provide it with nutrient-rich water.
b.
reconstruct the irrigation system so that water from the river is allowed to enter the ecosystem.
c.
add synthetic fertilizer to the remaining soil in the ecosystem so that soil fertility increases.
d.
plant cotton crops in the ecosystem and grow the same crop for at least a decade.

Fred: (waves to sarah) hi, i just moved here. my name is fred. sarah: hi fred. where are you from? fred: florida. the weather here in michigan sure is cold. sarah: i know what you mean, i moved here from san diego two years ago. wait until january. fred: i can just imagine. hey do you mind if i sit with you for a little while? sarah: no, take a seat. i’d love the company during lunch. fred: it’s been hard to meet anyone since i started school last week. sarah: no worries. i know exactly how you feel. i moved at the end of the school year and didn’t get to know anyone. then i spent the summer alone. fred: aw, bummer. it sure is tough to start a new school. sarah: yeah, but when school started again, i met some cool people. fred: i am really shy about meeting new people. sarah: well, i can introduce my friends to you. (bell rings) fred: that would be great! guess lunch is over. it’s been great talking to you. sarah: you too. meet me here for lunch tomorrow and i’ll introduce my friends. fred: great. bye. sarah: later. the conversation between fred and sarah is an example of impersonal communication. select the best answer from the choices provided t f

Read the excerpt from the dark game: true spy stories from invisible ink to cia moles. yet, by the time robert e. lee surrendered to ulysses grant at appomattox, virginia, some four years later, about 620,000 soldiers had died on the battlefields, more than american battle deaths in all other wars from the revolution through the vietnam war. what is the author’s primary purpose for including this detail? to inform readers about the differences between three military conflicts to persuade readers of the seriousness of the american civil war to entertain readers with tales from behind the lines of battle to encourage readers to visit battlegrounds in appomattox, virginia

The arctic national wildlife refuge is home to caribou, moose, musk oxen, wolves, foxes, grizzlies, polar bears and migratory birds. leaders in the oil industry believe the refuge is the perfect site for the “environmentally sensitive exploration” of oil. environmentalists are wondering: what will become of the wildlife? president george w. bush, oil-industry leaders and others believe that americans will benefit from the oil that lies under the snow-filled surface of the refuge. in their opinion, the oil will reduce high fuel prices and decrease our need for oil from other countries. i believe the cost of such drilling is too high. i agree with environmentalists who fear that drilling will disturb the migration of more than 130,000 caribou. each spring, the caribou travel 400 miles to give birth on the coastal plain. in this area of the refuge, there are fewer predators. in addition, experts say that the oil in the area adds up to less than a six-month supply. is such a small amount of oil worth the risk drilling poses to these animals? americans are the largest consumers of oil. instead of drilling for oil, we should decrease our need for foreign oil simply by using less. we must all work together to cut back on the oil we use in order to preserve the wildlife of the arctic national wildlife refuge. what type of argument is used in this paragraph? i believe the cost of such drilling is too high. i agree with environmentalists who fear that drilling will disturb the migration of more than 130,000 caribou. each spring, the caribou travel 400 miles to give birth on the coastal plain. in this area of the refuge, there are fewer predators. in addition, experts say that the oil in the area adds up to less than a six-month supply. is such a small amount of oil worth the risk drilling poses to these animals? a. appeal to emotion c. appeal to logic b. bandwagon d. none of the above select the best answer from the choices provided a b c d