The Most Likely Region of the Radio Spectrum for Communication

question 5

Multiple Choice

The most likely region of the radio spectrum for communication with other civilizations is the water hole, the part of the spectrum

• A) near the radio emission of water.
• B) near the radio emission of oxygen molecules.
• C) between the radio emission of hydrogen and oxygen.
• D) between the radio emissions of hydrogen and OH.
• E) near the radio band where water in the Earth s atmosphere strongly absorbs energy.

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