Parma and paincho are systems of cooperation because they both allow for social social interaction that allows individuals to cooperate in meeting each other's needs.
In short, parma and paincho mean "give and borrow (or borrow)." Paincho refers to goods and parma to services. they work in a society where people in need of a good (like food, clothing, money, etc.) or some service can ask these things from individuals who are not in need who can give or donate these factors or charge any cost or interest needy, just stipulating a date for the loan to be repaid.
Answer: C. a substance changes state from solid to liquid
Explanation:
A physical change is one that occurs when the substance of subject changes its form as a result of a reaction. The most noticeable indicator of this is a change in the state of matter such as a change from liquid to solid like the above.
The other options show a chemical change as the form was not changed but its chemical properties such as color was changed or it lost some atoms which became air.
Answer:
The law of supply and demand is a theory that explains the interaction between the sellers of a resource and the buyers for that resource. The theory defines the relationship between the price of a given good or product and the willingness of people to either buy or sell it. Generally, as price increases people are willing to supply more and demand less and vice versa when the price falls.
Explanation:
