Question

a star is located in the bottom left corner of the h - r diagram. what can you tell about its temperature, brightness, and color?
it is cool, dim, and red
it is hot, dim, and white
it is hot, bright, and blue
it is cool, bright, and yellow

Explanation:

In the Hertzsprung - Russell (H - R) Diagram, the horizontal axis represents temperature (hotter stars on the left, cooler on the right) and the vertical axis represents luminosity (brightness). Stars in the bottom left are hot (left - hand side), dim (bottom), and white in color.

Answer:

It is hot, dim, and white