Answer:
Option A
Explanation:
Gold is a what backs the supply of money in the united states. Money is a legal tender that is widely acceptable. Gold is neither a commodity or money but it is in use to get money not a backing of supplying money.
Answer: I think the independent is the number of social communities the introverts are involved in and dependent is the friends they make in the real world.
Hypothesis could be If introverts are involved in more online social communities, then they will have a higher confidence and make more friends in the live world.
Sorry if I’m wrong, that was my take on it
Answer:
Both.
Explanation:
Both dog and cat has the same potential energy because of the same mass of both animals. Potential energy depends on the height and mass of the body. if the mass of the body increases, its potential energy automatically increases and vice versa. If both dog and cat have the same mass, they have similar potential energy so we can conclude from the discussion that both have the same potential energy in their body.