The First Astronomical Radio Source, Identified by Karl Jansky During

question 42

Multiple Choice

The first astronomical radio source, identified by Karl Jansky during measurements of sources of radio noise, was

• A) the center of our Galaxy.
• B) the Crab Nebula.
• C) Jupiter.
• D) the Orion Nebula.

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Definitions:

Tuberosity

A large rounded projection on a bone that typically serves as an attachment site for muscles or ligaments.

Trochanter

A bony prominence on the femur near its joint with the hip bone, serving as a site for muscle attachment.

Hyaluronic Acid

A substance naturally present in the human body, notable for its hydrating properties and ability to retain water in skin tissues.

Organic Matrix

A complex framework of biological molecules, such as proteins and carbohydrates, that provides structure and support to various tissues, especially in bones and cartilage.