Which is associated with tropical areas that have winter dry seasons or less rainfall? canopy trees

savanna

deciduous trees

desert scrub

savanna

Explanation:

A "savanna" is typically associated with areas that have less rainfall and winter dry season. This is true for tropical savannas. This is more common in countries like Australia, Central America, South America, Africa, etc. There are instances when the dry season brings drought to the land, especially because summer season for this area is long. Rainy season may occur and most of the time the rain is heavy but it doesn't happen very often; thus, less amount of rainfall. During winter season, the region is dry owing to the "offshore winds."

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.