Question

Why do EVAs present unique challenges?

Answer 1

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.

Step-by-step explanation:

Answer 2

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.