What country has the greatest temperature difference between its northern and southern borders?

China has the maximum temperature difference between its northern and southern borders.

Explanation:

The temperature difference ranges to almost 86 F. The temperature of China is affected by polar and Pacific air masses which bring extreme cold weather to the north.

In the south, ocean air masses bring moist weather. In the north, the dry air masses lead to cold weather whereas in the south, the temperature remains stable almost all the year round with rainfall.

the answer is a hope this

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.