Answer:
Acrostic Poem:
C- Carbon dioxide, carbonic acid gas, C02 (you can choose either of the three to put for this one).
A- Atmosphere has 0.04% percent.
R- Reactant in photosynthesis.
B- Broken down into the earth.
O- Organisms that are living have carbon in them.
N- Natural, but not a natural resource.
C- Cellular respiration.
Y- You should know carbon can be found by itself in a pure form.
C- Coal and other fossil fuels.
L- Life's necessity.
E- Endless cycle.
Explanation:
I hope this helps and I wasn't too late
5 is b because it makes more sense
Irrigation system gave the ancient civilizations fertile land which helped crops grow. It also allowed for ease of watering which made the process of farming faster.
The last option because it's like the earth
