If Plants Consume CO₂ During Photosynthesis, Why Hasn't All the Atmospheric

question 18

Multiple Choice

If plants consume CO₂ during photosynthesis, why hasn't all the atmospheric CO₂ been used up?

• A)Photosynthesis also produces CO₂ as a product.
• B)Respiration produces CO₂ as a product.
• C)Both photosynthesis and respiration produce CO₂ as products.
• D)Plants actually don't use CO₂ during photosynthesis; they use O₂.
• E)Photosynthesis and respiration use one another's products as reactants.

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Definitions:

Power Balance Test

A test used to determine if each cylinder is contributing power to overall engine output. During the test, fuel injectors are disabled and the change in engine rpm is recorded. If a cylinder is not producing power, there will not be an rpm drop when that cylinder’s injector is disabled, alerting you to the problem cylinder.

Engine Output

The amount of power produced by an engine, typically measured in horsepower or kilowatts.

Compression Test

A diagnostic tool used to measure the amount of pressure that an engine's cylinders can generate, indicating the health of the engine's internal components.

Torque

The rotational or twisting force applied to an object; crucial in determining an engine's power.