Answer:
Plants consume carbon dioxide and release oxygen.
Answer: Photosynthesis
Animals consume oxygen and release carbon dioxide.
Answer: Respiration
a) The change here is that metallic iron is converted into ions and copper is deposited. This is called a displacement reaction.
b) 
is oxidised in this reaction.
c)$ \mathrm{Fe_{(s)}+ CuSO_{4(aq)} \rightarrow FeSO_{4(aq)} + Cu_{(s)}}$
Answer:
The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge, although the latter three are actually just extensions or combinations of the first three.
Answer:
A
Explanation:
More electrons than protons, thus giving the atom an overall charge of -2
I think leaf color from summer to fall
