Animal and humanity can be parallel to each or. But, animalistic world and that of ours are totally distinct in sense that we are far more conscious than m.
In above sentence, bold word 'world' means

If there were no mountains or oceans and if the winds circled the earth with perfect regularity then the amount of heat and the length of the farmer's growing season would progress uniformly from north to south. Instead, there are all kinds of unexpected differences in climate, as temperature maps of the United States show. For instance, all along the western coast, the temperature changes little between winter and summer. In some places, the average difference between July and January is as little as 10 degrees centigrade. The climate along the northern part of this coast is similar to that of England. But in the north central part of the country, summer and winter are worlds apart. There the average difference between July and January is 36 degrees centigrade and more violent extremes are common. The coldest days of a typical January may be 4 degrees centigrade, and the hottest July day may be 45 degrees. This is the sort of climate that is also found in central Asia, far from the moderating influence of the oceans. In the eastern part of the United States, the difference between summer and winter is also very distinct, but not nearly so extreme. Near the southwestern corner of the country, the climate is mild and spring-like in winter, but In summer the temperature may reach equatorial intensity. In Alaska, almost continues daylight in summer makes the short growing season an intense one. The variations in temperature within the United States have had a marked effect on the country's economy and living standards.
Question:

The passage can best be entitled