They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.
4x^2-13x+14 hope this helps
I believe that would be subsidence
Answer:
They use light to make food.If there is no light, they are not able to make food and hence leading to their death.
Explanation:
Hope that this is helpful.
Have a nice day.
