How Is It That Satellites Can Detect Differences in Primary

question 21

Multiple Choice

How is it that satellites can detect differences in primary productivity on Earth?

• A) Photosynthetic organisms absorb more visible light in the 350- to 750-nm wavelengths.
• B) Satellite instruments can detect reflectance patterns of the photosynthetic organisms of different ecosystems.
• C) Sensitive satellite instruments can measure the amount of NADPH produced in the summative light reactions of different ecosystems.
• D) Satellites detect differences by comparing the wavelengths of light captured and reflected by photoautotrophs to the amount of light reaching different ecosystems.
• E) Satellites detect differences by measuring the amount of water vapor emitted by transpiring producers.

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