in a monopoly, why is the Marginal Revenue curve is lower on the graph than the demand curve

Not sure how to complete the chart

What is the difference between a monopoly's marginal revenue curve and a perfect competitor's marginal revenue curve? Please explain the difference in these markets by drawing the graphs.

Natural monopoly is inefficient as it charges a price higher than marginal cost. Is it feasible for the government to regulate the monopoly by setting a price equal to marginal cost? Explain with a diagram.

The table below shows cost data for producing different amounts of cleaning products. Suppose this market is a monopoly. Use the information in the table to find the output where the monopoly would maximize profit. Price ($) Quantity Total Revenue ($) Total Cost ($) 150 0 0 100 120 5 600 180 100 10 1000 400 90 15 1350 675 80 20 1600 1120 70 25 1750 1750 Profit maximizing quantity: What is the profit the monopoly achieved? $

Can you think of good examples of a monopoly market environment?

Some say a monopoly can charge whatever price it wants. This is not true, explain why? What restricts a monopoly? (government regulation is not the answer here).

Suppose a monopoly is producing at its profit-maximising (loss-minimizing) quantity, and the price corresponding to this quantity is below average total cost but above average variable cost. The monopoly will shut down in the short run but return to production in the long run shut down in the short run and exit the market in the long run keep producing both in the short run and in the long run keep producing in the short run but exit the market in the long run None of the above.

Provide an example of a company that has a monopoly (could be a local monopoly).

Is a monopoly still subject the laws of supply and demand?  How can it use these laws to its advantage?