Which gas do plants release as a by-product of photosynthesis?
AnswerOxygen
Photosynthesis splits water molecules, releasing oxygen into the air.
Nature · Facts & stats
Plant facts & stats
7 fact-checked facts about plants, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Bamboo is actually a type of what?
AnswerGrass
Bamboos belong to the grass family, Poaceae, and some species are among the fastest-growing plants.
Going deeper
Which plant tissue carries water up from the roots?
AnswerXylem
Xylem is made of tube-like cells that carry water and minerals from roots to leaves.
Which kind of tree is the tallest in the world?
AnswerCoast redwood
Coast redwoods in California can grow over 110 meters tall; giant sequoias are the largest by volume.
The Venus flytrap is native to a small area of which country?
AnswerUnited States
Venus flytraps grow wild only in boggy areas of North and South Carolina.
Expert level
Which plant produces the largest single flower in the world?
AnswerRafflesia arnoldii
Rafflesia arnoldii of Sumatra and Borneo has flowers up to about 1 meter across.
Botanically, what are a cactus's spines?
AnswerModified leaves
Cactus spines are modified leaves that cut water loss and protect the plant, while the stem does photosynthesis.
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