Explanation:
The similarities of the inner and outer planets are The inner planets are often referred to as “terrestrial” or “rocky” planets. The outer planets, meaning those planets outside the asteroid belt, are called “gas giants.” The terrestrial planets are small (astronomically speaking). Earth is the largest one, with a diameter of about 8000 miles
The solid portion of a comet—the only portion that exists when the comet is far from the Sun.
I think you forgot to give the choices along with your question. I am answering the question based on my research and knowledge. "Helium effuses 0.71 times faster than hydrogen" is the statement that <span>holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams. I hope the answer has helped you.</span>
Body cells and tissues
They help give oxygen and other nutrients to keep you healthy
Hope this helps, Godbless :)