Why are rainforests called "the lungs of the Earth"?
Correct answer: D. They absorb large amounts of carbon dioxide and release oxygen
- A. They filter ocean water
- B. They breathe like animals
- C. They are shaped like lungs
- D. They absorb large amounts of carbon dioxide and release oxygen
Explanation
Rainforest photosynthesis absorbs CO₂ and releases oxygen on a vast scale.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About World Geography
World Geography covers continents, oceans, major rivers, lakes, mountains, deserts, islands, straits and canals, along with countries, capitals, borders and time zones. It also includes climate regions, natural resources, population distribution and important physical features, distinguishing physical geography from political geography.
Practise World Geography
4,434 free World Geography MCQs from General Knowledge, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask General Knowledge questions like this
General Knowledge is on 102 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More World Geography questions
What are the tallest rainforest trees that rise above the canopy called?
What is the dense uppermost layer of a rainforest called?
Which natural vegetation grows in the equatorial climate?
Which is the largest tropical rainforest in the world?
Which timber trees are typical of tropical rainforests?
Which climate has a distinct wet season and dry season in the tropics?