Acrew of six astronauts from the united states and other countries live on the _and conduct space research hoping to have positive impacts to life on earth.

Is it the Space station? I can’t think of any other answer

All the elements are arranged by melting points on the periodic table. in row they go from metals to gasses. in the row from sodium to argon, sodium is more reactive than the one on its right, magnesium.

What’s the question