Answer:
a
Explanation:
its right i love worms. brainliest please
<span>a. constructed from thick aluminum walls that can control the nuclear reactions </span>
To be honest, since we live on Earth (assuming you do as well), Earth is the easiest planet to study. We don't know much about the other planets because we've never been to any of them. I believe that the second easiest planet to study is either Uranus or Saturn.
