It started with germany and austria-hungary along with russia. then the ottoman empire allied with germany and austria-hungary. countries devoted all their resources to the war effort. even though the majority of the fighting took place in europe, other countries were still involved.
1.a lot of the times gas was a problem. Bathing and washing would have solved the problem but this was not possible in the trenches. Many soldiers suffered from the effects of gas attacks for the rest of their lives.
2.Some soldiers suffered from a condition called trench foot.This was caused by standing in water and mud for a long time and losing blood circulation. In some cases, soldiers' socks started to grow on to their feet. In severe cases, soldiers had to have their feet or legs amputated (cut off).
3.Trench fever was an unpleasant disease caused by body lice during World War One.The fever was easily passed between soldiers, causing them to suffer from high fever, headaches, aching muscles and sores on the skin. It was painful and took around twelve weeks to get better from. For many soldiers, it was an illness that struck them more than once
4.Shell shock was another new illness during World War One.It was not a physical illness, but a mental one. The constant noise of explosions and guns, along with the smell and danger of the trenches made many soldiers very scared and uncomfortable. Shell shock caused soldiers to act strangely. They found life on the front line very hard to deal with and would stop being able to follow commands and do their duties properly.To begin with, officers and doctors did not understand the illness and thought the soldiers were weak. Some were sent to special hospitals to recover. Others had to carry on fighting.
Deadly Deserts and Towering Mountains. ... China's towering mountain ranges cover two-thirds of the country, including the Himalayas, which hold the world's tallest peaks along the country's western borders. These treacherous deserts and mountains kept early China isolated from Western civilizations.
Answer:
the milky way galaxy and other nearby galaxies I guess I am not sure