Quick answer: Air is about 78 % nitrogen and 21 % oxygen. This Chemistry 9-10 quiz checks atmosphere and Earth resources with 10 multiple-choice questions and instant feedback; every answer comes with a short explanation.
This atmosphere and Earth resources quiz for chemistry grades 9-10 has quick multiple-choice questions with instant feedback. Need a refresher first? Read the lesson or do the worksheet on atmosphere and Earth resources.
Choose the best answer for each of the ten questions. Each has one correct answer and three typical mistakes. Read each explanation to check your understanding of the environmental chemistry.
Level: Chemistry grades 9-10 (GCSE · IGCSE · O Level · Class 9-10) · Curriculum: HS-ESS3-6, GCSE C9-C10
