Question

why do you think that astronomers are considered to be earth scientists?

Explanation:

Astronomers study celestial objects and phenomena that can have significant impacts on Earth, such as solar - activity affecting Earth's magnetic field and climate. Also, understanding the origin and evolution of the universe helps in understanding Earth's place and formation within it.

Answer:

Astronomers study phenomena related to Earth's environment and its cosmic context, which links them to Earth - science studies.