The Water in a Deep Crater in a Bay on a Tropical

question 81

Multiple Choice

The water in a deep crater in a bay on a tropical island is a striking pure blue color.The water in the surrounding ocean is more of a green color.Which of the following is a logical hypothesis?

• A) The water in the bay has a low level of phytoplankton and primary productivity, while there is a higher concentration of phytoplankton in the surrounding ocean.
• B) The water in the bay has a high level of phytoplankton and primary productivity, while there is a lower concentration of phytoplankton in the surrounding ocean.
• C) The concentration of phytoplankton and primary productivity in the bay and the surrounding ocean is the same, and it is very high.
• D) The concentration of phytoplankton and primary productivity in the bay and the surrounding ocean is the same and is almost zero.

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Definitions:

Productive Efficiency

A state where an economy or entity is operating in such a way that it cannot produce more of one good without reducing the output of another good.

Minimum ATC

The lowest point on the average total cost curve, representing the most efficient scale of production.

Purely Competitive Market

An idealized market structure characterized by a large number of small firms, identical products, and free entry and exit, leading to perfect competition.

Long-run Equilibrium

The state in which all factors of production and costs are variable, leading to a situation where no firm in the market wants to change its output level, assuming no external changes.