Answer:
Mutual defense alliances was a significant cause for starting World War I. Basically, what happened was all of the countries were somehow alliances with other countries. Conflict between different countries caused the allied countries to be involved which eventually led to World War I.
Explanation:
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.
Carbal was the first explorer to sail to the east coast of South America. He sailed for Portugal. Hope it help!