If You Were Able to Travel Back in Time 4

question 72

Multiple Choice

If you were able to travel back in time 4 billion years to when life first appeared on Earth,what feature of Earth would make it immediately impossible for you to survive?

• A) The high ozone content of the air would interfere with metabolic processes.
• B) There would be no water on Earth.
• C) There would not be enough ultraviolet radiation to support photosynthesis.
• D) There would not be any protein-containing organisms for food.
• E) The oxygen content of the air would be too low to support aerobic metabolism.

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Definitions:

Externality

An effect of economic behavior that impacts people not directly involved in the transaction, which may be beneficial or harmful.

Socially Optimal Quantity

The socially optimal quantity is the level of production of a good or service that maximizes societal welfare, considering both private and external benefits and costs.

Seller

A seller is an individual or entity that offers goods or services for sale in the market.

Buyer

An individual or entity that acquires goods or services in exchange for money, playing a crucial role in the dynamics of supply and demand in the marketplace.