It has a root hair that grows (?) out of the cell and increases the surface area to increase the volume/amount (?) of absorption. It also has a large permanent vacuole that speeds up the rate of reaction/absorption (?). It has mitochondria to release the energy needed for active transport of mineral ions.
I think its pure substance since a pure substance can only be made of 1 atom or molecule
therefore carbon-dioxide could be made up of a ton of molecules of carbon
and dioxide.
I may be wrong Though
I am also taking the test, but I think it's C. But I'm not exactly sure
Answer:
The electron cloud is the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital.
Explanation:
This is from my textbook