The Strongest Lines Present in Spectral Class a Stars Are

question 84

Multiple Choice

The strongest lines present in spectral class A stars are absorption lines of

• A) oxygen.
• B) iron.
• C) complex molecules.
• D) helium.
• E) hydrogen.

---

Definitions:

Collision Detection

A method used in networking to identify when two devices attempt to send information over the network channel at the same time, causing a collision.

Access Control Scheme

A method or protocol that determines how to grant or restrict access to resources or environments based on identity or credentials.

ControlNet

An open, high-speed, deterministic network that transfers on the same network time-critical I/O updates, controller-to-controller interlocking data, and non-time-critical data such as data monitoring and program uploads and downloads.

High Speed

Refers to operations or processes that occur at a fast rate, typically within systems or machines that require rapid response times.