Approximately What Percentage of the Sun's Output Is Available for Photosynthesis

question 30

Multiple Choice

Approximately what percentage of the sun's output is available for photosynthesis?

• A)4%
• B)8%
• C)20%
• D)40%
• E)60%

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Definitions:

Proportional Gain

Proportional Gain is a parameter in PID control that determines the relationship between the magnitude of the error signal and the magnitude of the control variable.

On/Off Controller

A simple control mechanism that switches a device or system between two states: on and off.

Process Variable

A measurable quantity representing a condition essential to a process, such as temperature, pressure, or flow rate, monitored to control or optimize the process.

Control Element

A component used in control systems to modify or manage the control process, such as a valve or switch.