Why do EVAs present unique challenges?

The harsh environment of space challenges human survival. A lack of oxygen and atmospheric pressure, intense radiation, and the lack of gravity confront humans in space. The metals and machines of our space vehicles ensure some safety, but a human outside the protection of a spacecraft bears the brunt of the danger.

Explanation:

what are local authorities doing to fix the problem

explanation:

what are local authorities doing to fix the problem

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this