If you live near the coast, you may know how different a swim in the ocean feels in December than it feels in July. Temperatures in the surface zone vary with latitude and the time of year. Surface temperatures range from 1°C near the poles to about 24°C near the equator. Parts of the ocean along the equator are warmer because they receive more direct sunlight per year than areas closer to the poles. However, both hemispheres receive more direct sunlight during their summer seasons. Therefore, the surface zone is heated more in the summer. Why are parts of the ocean along the equator warmer than those closer to the poles?

In this excerpt from "a modest proposal" by jonathan swift, which important issue does the writer deal with using a satirical tone? some persons of a desponding spirit are in great concern about that vast number of poor people, who are aged, diseased, or maimed; and i have been desired to employ my thoughts what course may be taken, to ease the nation of so grievous an incumbrance. but i am not in the least pain upon that matter, because it is very well known, that they are every day dying, and rotting, by cold and famine, and filth, and vermin, as fast as can be reasonably expected. and as to the young labourers, they are now in almost as hopeful a condition. they cannot get work, and consequently pine away from want of nourishment, to a degree, that if at any time they are accidentally hired to common labour, they have not strength to perform it, and thus the country and themselves are happily delivered from the evils to come. a. old, sickly people cannot be hired as laborers because they don't have the physical stamina required for the job. b. old, sickly people and young laborers are useless to the nation because they cannot be productive citizens. c. the economy of the nation is burdened by the poor, the old, and the sickly who survive on charity and handouts. d. the living conditions of the poor and their lack of employment opportunities are serious concerns for the nation. reset next