<span>Although the area Ardi was found it is now desert, but that doesn't mean it was always like that. Scientist discovered fossilized wood and seeds in the same sediment layer as Ardi leading them to believe that Ardi's environment was a woodland habitat.</span>
Compounds are made up of elements.
Elements are the ones we pull straight out from the periodic table.
For example:
H2O, HCl, NaCl, NaOH --> these are all compounds
H, N, B, Ne, Na, Cl, O, K --> these are all elements.
Is say B it may be C though
The beaker's wide mouth makes it easier to add and remove test tubes without spilling