What do we mean by monopoly and give me simple examples?

What do we mean by oligopoly and give me simple examples?

What do we mean by natural monopolies and give me simple examples?

What do we mean by government monopolies and give me simple examples?

What do we mean by market power and give me simple examples?

What do we mean by predatory pricing and give me simple examples?

Four conditions of monopolistic (give me 1 line answer only for following with simple examples)

1. Many firms
2. Few artificial barriers to entry
3. Slight control over price
4. Differentiated products

How do firms in monopolistic competition get customers (provide simple answer 1 line only with examples)

Four conditions of nonprice competition (give me 1 line answer only for following with simple examples)

1. Characteristics of goods
2. Location of sale
3. Service Level
4. Advertising image

How do oligopolies work? (Give me 1 line answer only for following with simple examples)

1. Collusion
2. Price Fixing
3. Cartels

4 forms of Anti-trust law (Give me 1 line answer only for following with simple examples)

1. Regulating Business Practices
2. Breaking Up Monopolies
3. Blocking Mergers
4. Preserving incentives

Note : All answers should be written in a simple way with simple English language and vocal ( only 1 line answer as possible to the point)!!!!