Answer:
Immigrates are people who travel from one place to another and settle in the new region either for trading or livelihood. But as one region people immigrate to another region, lot of problems also arises . As the population at the new region increases than the natural place available for a particular region. This in turn leads to the depletion of the natural resources more than the normal level.
Increased usage of the natural resources makes it towards extinct. The food resources becomes less available due to huge demand leading to malnourishment. Increased industrialization causes increased chemicals release to the atmosphere causing harmful environment for the native people to survive. Job opportunities is decreased due to many people for the available post. Hence immigrants from Mexico and US created a lot of problems to the native people and the environment.
An area with frequent rainstorms would experience the most friction. More water is running over everything causing abrasions and friction
I have recently moved to a new city, so a map that I use often is a map of the city that includes all important touristic attractions. The map highlights items such as museums, art galleries, restaurants, coffee shops, shopping malls, parks, historic landmarks and other elements of cultural interest.
This map allows me to find locations, but it also includes extra information, such as the nature of each location. The map fits in the category of special interest, as it addresses a need (tourism) that is not usually included in most standard maps.