(A) Is $2 \subseteq \{ 2,4,6 \}$ ?
(B) Is $\{ 3 \} \in \{ 1,3,5 \}$

question 10

Essay

(a) Is $2 \subseteq \{ 2,4,6 \}$ ?
(b) Is $\{ 3 \} \in \{ 1,3,5 \}$ ?

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Definitions:

Sound Waves

Vibrations that travel through air or another medium and can be heard when they reach a person's or animal's ear.

Night Blindness

A condition that makes it difficult or impossible to see in low light or darkness, due to impaired rod cell function in the retina.

Nerve Impulses

Electrical signals that travel along neurons, conveying information throughout the body.

Background Noise

Ambient audio that is not the primary focus but may affect the perception or the environment in which other sounds are heard.