aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Earth Day Quiz
  • From where does more than half of the world's breathable ...
Multiple choice

From where does more than half of the world's breathable oxygen originate?

  1. flowers

  2. the atmosphere

  3. oceans

  4. forests

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marine plants, specifically phytoplankton, are responsible for producing more than half of the oxygen in the atmosphere.

Keep practicing — related questions

  • Where does 50% of Earth's oxygen come from?
  • Oxygen is found in many places on Earth, because of this it is from
  • How much of the world's oxygen is supplied by the Amazon rain forest?
  • The air we breathe consists ____ nitrogen, oxygen, carbon dioxide, and several other gases.
  • Half of the world's pastoral population lives in Africa. Which of the following communities is not African?
  • Which of the following reports is/are published every year by the World Bank? 1. World Development Report 2...
  • World Cancer Day 2016 was observed across the world on 4th February. What was the theme of the 2016 World C...
  • What will be the output of the following code snippet? main() { clrscr(); char ch[]=Hello; switch(ch) { cas...
Play the full quiz 🎤 Practise this topic out loud

Practice this topic

  • Atmospheric Structure and Ozone (1319 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy