D. Fear of communism spreading to many Asian countries
Answer:
Alliances contributed to the start of World War I because so many alliances were being created all over the world. Most alliances would agree to protect one another if either country in that alliance got attacked by other countries. So if a country got attacked by another one, you could expect the country being attacked to be backed up by their alliance, creating future wars to commence.
Hope this helps.
1.
the surroundings or conditions in which a person, animal, or plant lives or operates.
Environment can be defined as a sum total of all the living and non-living elements and their effects that influence human life.
