How did immigration change the world? i need like 2 paragraphs. ill mark brainliest !

Evidence clearly shows that immigrants provide significant economic benefits. However, there are local and short-term economic and social costs. As with debates on trade, where protectionist instincts tend to overwhelm the longer term need for more open societies, the core role that immigrants play in economic development is often overwhelmed by defensive measures to keep immigrants out. A solution needs to be found through policies that allow the benefits to compensate for the losses.

Around the world, there are an estimated 230 million migrants, making up about 3% of the global population. This share has not changed much in the past 100 years. But as the world’s population has quadrupled, so too has the number of migrants. And since the early 1900s, the number of countries has increased from 50 to over 200. More borders mean more migrants.

immigrants provide significant economic benefits.

Explanation:

person above me is right. Evidence clearly shows that immigrants provide significant economic benefits.

couples could only have one child to reduce the population growth.

japan is located on a chain of islands called an archipelago. it is made up of four main islands and thousands of smaller ones. the terrain is mountainous, which means there is not a lot of good land for farming. because of the geography, the japanese relied on the sea for many aspects of daily life.