Answer:
Economic and environment issues are most challenging for developing countries.
Explanation:
For a developing country, the issues of economic and employment are the most dangerous and challenging as the growth of all the other factors depends on this.
Economic and employment related issues can hamper the growth of the citizens which can further result in the slow development (growth) of the nation as well.
If the people of a developing country are not able to get the jobs it simply means that they are not creating per capita income for the income and thus putting the burden on the economy which is not a good for a developing country.
American settlers, Native Americans, and Mexican Americans faced some conflicts in the Mexico cession. They all faced legal, economic, and social discrimination problems.
In short, conflicts over land and water.
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The assassination of the Archduke Fredinand of Hungary was what triggered the start of world war 1.
