-As shown above, which contributes the most to the total noise in the region that may be likely for interstellar communication
A)noise from galaxy
B)noise from Earth's atmosphere
C)background radiation and/or noise from Earth's atmosphere
D)quantum mechanical noise

Question

-As shown above, which contributes the most to the total noise in the region that may be likely for interstellar communication 
A)noise from galaxy 
B)noise from Earth's atmosphere 
C)background radiation and/or noise from Earth's atmosphere 
D)quantum mechanical noise

Quizplus · Accepted Answer

The most significant contributors to total noise in regions likely for interstellar communication are background radiation and/or noise from Earth's atmosphere. Background radiation, particularly the cosmic microwave background radiation, is pervasive throughout the universe and represents a fundamental noise floor for all astronomical observations. Additionally, Earth's atmosphere itself can contribute significantly to noise, especially for radio frequencies, which are commonly considered for interstellar communication.

-As Shown Above, Which Contributes the Most to the Total