Question

gg.1 identify common and proper noun
select the one proper noun.
venus is the brightest planet in the sky. it can even be seen during the day.

Explanation:

A proper noun is a specific name for a particular person, place, or thing. In the sentence "Venus is the brightest planet in the sky. It can even be seen during the day," "Venus" is the name of a specific planet, so it is the proper noun.

Answer:

Venus