economics supply and demand

Please provide a detailed explanation of the following:

a. What is meant by "Market Equilibrium"? Will the market equilibrium price change in response to: a) Surplus and b) Shortage. Discuss

b. Will the market always reach equilibrium? Discuss.

c. Why do governments interfere with the market equilibrium price? And if so, Discuss and offer example

Grading Rubrics.

In your initial post, use the following grading rubrics

1. Define the terms

2. Explain the terms

3. Offer an example to further illustrate your point

4. Relate how this week's Discussion is related to last week's topic/assignments/material