A. Water being pumped in and out of guard cells.
Answer:
Option (A).
Explanation:
Sociology may be defined as the subject that focus on the study of development and social interaction in society. Sociology is also known as the general science of the society.
Amy and Katherine are the member of same team and Amy shows fast development than Katherine. They both are competitor of each other. This is human behavior to jealous with the person that perform better than them. Here, the development of Amy makes jealous to Katherine and she starts disliking Amy.
Thus, the correct answer is option (A).
Yes, it is believed that one of the first Greek ancient astronomers, and the first notable Greek philosopher, was Thales, who lived at the beginning of the 6th Century BCE.
It means, process of eliminating waste matter..
