How Might a Decline in Phytoplankton Affect the Climate of Earth

question 42

Multiple Choice

How might a decline in phytoplankton affect the climate of Earth?

• A)A decline in phytoplankton could alter the carbon cycle by moving less carbon dioxide from the atmosphere into phytoplankton tissues.Since carbon dioxide is a greenhouse gas,more of it in the atmosphere could contribute to global warming.
• B)A decline in phytoplankton could alter the phosphorous cycle by moving less phosphorous from the atmosphere into phytoplankton tissues.Since phosphorous is a greenhouse gas,more of it in the atmosphere could contribute to global warming.
• C)A decline in phytoplankton could alter the hydrologic cycle by moving less water from the atmosphere into phytoplankton tissues.Since water is a greenhouse gas,more of it in the atmosphere could contribute to global warming.
• D)A decline in phytoplankton could alter the oxygen cycle by moving less oxygen from the atmosphere into phytoplankton tissues.Since oxygen is a greenhouse gas,more of it in the atmosphere could contribute to global warming.

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Definitions:

Logical Reasoning

The process of using a logical sequence of thinking, utilizing deductive or inductive reasoning, to arrive at a conclusion or solve problems.

Direct Observation

A method of gathering data by watching behavior or events as they occur in their natural setting.

Internal Events

Psychological or physiological occurrences within an individual that are not observable by others.

Empirical

Based on, concerned with, or verifiable by observation or experience rather than theory or pure logic.