Challenging Natural World Facts Quiz
Test your knowledge with a set of tough nature fact questions that challenge even seasoned trivia fans.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which river holds the record for the greatest total length when its tributaries are included?
- 2
Which plant species possesses the largest known genome among all living organisms?
- 3
Which mammal experiences the longest gestation period of any known species?
- 4
Which lake ranks as the deepest freshwater body on Earth?
- 5
Which bird holds the record for the highest sustained level flight speed?
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