Tropical rain forests are:
Correct answer: D. All of the above
- A. The most valuable and the richest ecosystems on earth
- B. They play a critical pat in the earth's life support systems and house 50% and possibly as much as 90% of all the species on earth
- C. They are a key storehouse of foods, oils and minerals and source of ingredients that make up a range of medical treatments
- D. All of the above
Explanation
Tropical rain forests are exceptionally species-rich ecosystems and perform major life-support functions such as carbon storage and climate regulation. They also provide foods, oils, minerals and medicinal compounds, so all three statements are intended to be correct.
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