Why Do Scientists Think That the Current Global Warming Situation

question 15

Multiple Choice

Why do scientists think that the current global warming situation is NOT caused by natural forces?

• A) Models of the Sun show that radiation hasn't varied throughout human history.
• B) Volcanoes have not been known to cause global climate change, only local changes.
• C) Mathematical models show that possible natural forces aren't significant enough.
• D) Humans are the only sources capable of changing the climate.
• E) They don't know. They just assume that humans are the cause.

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Definitions:

Optimal R&D

The ideal level of spending on research and development that maximizes an organization's returns or benefits.

Oligopolists

Firms or entities that operate in an oligopoly, a market structure characterized by a small number of sellers that dominate the market.

R&D

Stands for Research and Development, which refers to investigative activities a business conducts to improve existing products and procedures or to lead to the development of new products and procedures.

Economic Profit

The difference between total revenue and total costs, including both explicit and implicit costs, representing the actual profitability of a company beyond just its accounting profits.