Cell wall won’t be found in a animal cell since it’s only there in a plant cell.
Volume? Is that what you mean?
The earth is surrounded by <em>a layer of</em> gases called the <em>atmosphere</em>. The atmosphere is very <em>important </em>to life on <em>Earth</em> and does many <em>things</em> to help protect life and help<em> life </em>to survive.
The atmosphere absorbs the <em>heat</em> from the <em>Sun </em>and keeps the heat <em>inside</em> the atmosphere helping the <em>Earth </em>to stay warm, called the <em>Greenhouse </em>Effect.
Answer:
The law of conservation of matter and energy states that matter is neither created nor destroyed but conserved. They can only rearrange the matter and energy. For example, an oxygen atom will cycle through a living system.
I'm pretty sure that you are talking about mass.
