Why Is the Frequency Range Between 1 and 10 GHz

question 6

Multiple Choice

Why is the frequency range between 1 and 10 GHz particularly favorable for interstellar communication?

• A)The numbers 1 and 10 are nice round numbers
• B)Background noise is at a minimum in that range
• C)We have already received signals in that range
• D)It is easiest to build radio telescopes that operate in that range

---

Definitions:

Earth's Ecosystems

Varied and complex communities of living organisms interacting with each other and their non-living environments across the Earth.

Earth Layers

The division of the Earth's interior into distinct layers, including the crust, mantle, and core, each with its unique properties and composition.

Lithosphere

The rigid outer layer of the Earth, encompassing the crust and the upper mantle, which is involved in plate tectonics and continental movement.

Trophic Level

The position that an organism occupies in a food chain, which determines the flow of energy and nutrients from one organism to another.