The Distance to the Andromeda Galaxy Is Estimated at About

question 21

Multiple Choice

The distance to the Andromeda Galaxy is estimated at about 2 × 10⁶ light years.A light year is the distance traveled by light in one year;if the speed of light is 3 × 10⁸ m/s,about how far is it from our galaxy to Andromeda? (1 year = 3.15 × 10⁷ s)

• A) 10 × 10¹⁵ m
• B) 1 × 10¹⁸ m
• C) 2 × 10²² m
• D) 6 × 10¹² m

---

Definitions:

Cognitive Development

The process of growth and change in intellectual capabilities such as thinking, reasoning, and understanding, throughout the lifespan.

Increasing Fussiness

A gradual increase in irritability or restlessness, often observed in infants as a response to discomfort or unmet needs.

Autism Spectrum

A range of neural development disorders characterized by challenges with social skills, repetitive behaviors, speech, and nonverbal communication, each person with autism can have unique strengths and challenges.

Neurobiological Nature

The characteristics and functions of an organism as determined by the biological and neurological processes.