Question

Number of known species of organisms on this earth is

• A. 5.0 million
• B. 3.2 million
• C. 1.7 million
• D. 1.32 million

Answer 1

Answer: (C)

1.7 million

A great biodiversity exists on our planet. Millions of living plants and animal species are flourishing on Earth. An approximate of 1.7 million organisms are known to exist. New species are getting discovered and recorded every year.

So, the correct answer is '1.7 million'.