Trees quiz

More questions about Trees

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Where did the seeds of hundreds of "Moon Trees" travel in 1971?

   Answer: Orbiting the Moon

   Why: Stuart Roosa carried them in his personal kit while the other two crewmen landed, and the seedlings grew up no different from controls.

2. 2 Medium

   Which chemical group gives autumn tree leaves yellow and orange colors?

   Answer: carotenoids

   Why: They were in the leaf all summer, only masked; autumn does not add colour so much as strip away the green that hid it.

3. 3 Hard

   What directly causes a girdled tree to die?

   Answer: Root starvation

   Why: A girdled tree stays green for months because water still ascends, but it collapses once the sugar-deprived roots die.

4. 4 Easy

   Which nut from oak trees is a key food source for wildlife?

   Answer: Acorn

   Why: A healthy oak can drop over 2,000 acorns in a typical year, but up to 10,000 in a mast year.

5. 5 Medium

   Which tree displays striped multi-colored bark?

   Answer: Rainbow Eucalyptus

   Why: Patches shed at different times, and the bright green layer beneath darkens through blue, purple and orange as tannins build up in it.

6. 6 Hard

   What kind of plant is a banana tree botanically?

   Answer: Perennial herb

   Why: A banana trunk is not solid wood but a cylinder formed from tightly overlapping leaf stalks.