____ Is(are)believed to Be Produced by Supernova Explosions

question 17

Multiple Choice

____ is(are) believed to be produced by supernova explosions.

• A) Coronal gas
• B) HI clouds
• C) Molecular clouds
• D) Reflection nebulae
• E) Dark nebulae

---

Definitions:

Microwave

Electromagnetic waves with wavelengths shorter than one meter but longer than one millimeter, used in cooking, communication technologies, and radar.

Radio

A technology that uses radio waves to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space.

Broadcast Medium

A communication channel that disseminates information, such as audio or visual content, to a wide audience simultaneously.

Coaxial

A type of cable with an inner conductor surrounded by a tubular insulating layer and shield, used for transmitting electrical signals.