Question Info

This question is public and is used in 90 tests or worksheets.

Type: Multiple-Choice
Category: Atmosphere
Level: Grade 7
Author: Zackandzoemom
Last Modified: 8 months ago

View all questions by Zackandzoemom.

Atmosphere Question

View this question.

Add this question to a group or test by clicking the appropriate button below.

Grade 7 Atmosphere

Earth's atmosphere is composed of about 21%                .
  1. argon
  2. oxygen
  3. hydrogen
  4. nitrogen
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.