Answer: I think the answer is true
Explanation: If you think about it, the terrestial planets ( being venus, earth, mars, and mercury) are made up very little gas which are carbon dioxide, nitrogen and oxygen, and the gas giants ( being jupiter, saturn, neptune, and uranus) have gases such as hydrogen and helium. Thus meaning, the terrestial planets could be a part of it and the gas giants are the most. So yes, the answer is true.
Answer:
Concentration Gradient
Explanation:
This means that it will move from a region where it's in lower conc to a region of higher conc
On site means insitu.
invitro means in glass like a test tube.