Answer:
Biomass
Explanation:
Biomass is renewable organic material that comes from plants and animals. Biomass was the largest source of total annual U.S. energy consumption until the mid-1800s. Biomass continues to be an important fuel in many countries, especially for cooking and heating in developing countries
Answer:
Social.
Explanation:
Psychology is the field of science that mainly deals with the study of the mental, social and human behavior of an individual. Different fields of psychology are development psychology, social psychology and cultural psychology.
Developmental psychology mainly deals with the study of the mental, social and physical changes of the organisms through its lifespan. The development psychology includes the interaction between the environmental experience of the individual and the genetic factors.
Thus, the answer is social.
I believe it is A) Nucleus
