The answer is C. Natural sources are limited. People tend to get their resources from the environment in order to live and survive. Because of the increasing number of human population, resources become scarce and there is not enough supply for consumption in the near future.
Answer:
The children are experiencing natural reinforcement.
Explanation:
Sandra's children are very successful in school and that is a stated natural reinforcer.
Natural reinforces occur as a result of their behavior without involving others expressing their approval of their behavior.
Sandra is trying to foster this natural reinforcement with positive social reinforcement, "but she does not always remember".
A speices usaully can only breed with the same species unless it is done in a lab with their DNA and sometimes that doesnt work
I am not trying to offend anyone, but this is what I say: The Bible, (and therefor the Qur' an, Vedus, etc.) is nothing but a book. It was writen by a man, and a man only. My evidence is because there are alterations in every holy book of each major religion. There are some things that are taken out and rewriten to apease a ciertain religon's ways. Therefore implying that any religion's holy script is not the word of god.
Hope this helps! Tell me if there is somthing wrong. And again, I'm not trying to offend anyone.
Have a nice day!