10 most difficult trees riddles A list of trees related questions that are most often answered incorrectly Botany quiz How deep is the root system of a giant sequoia?4 meters (13 feet). The sequoias root system is wide spreading, but shallow. There is no taproot. A mature sequoia's roots can occupy over 1 acre of earth and contain over 90,000 cubic feet of soil. very hard 30% 4 meters (13 feet)4 meters (13 feet)30%20 meters (60 feet)20 meters (60 feet)16%40 meters (130 feet)40 meters (130 feet)26%80 meters (260 feet)80 meters (260 feet)27%Created by: globalquiz.org. Statistics based on 7990 answers in 4 languages »biology riddles » This kind of tilted forest is a common sight in subarctic taiga. What is this phenomenon caused by?The soil. The permafrost prevents trees from developing deep root system. Climate variations or forest fires can thaw the upper extents of the permafrost, creating a ground slump called thermokarst.hard 45% the soilthe soil45%meteoritemeteorite9%low sun positionlow sun position18%the windthe wind26%Created by: Kasia. Statistics based on 13676 answers in 4 languages »soil riddles » Which non-coniferous trees are the tallest in the world?Eucalypts. Eucalyptus regnans, the Australian mountain ash, is the tallest of all flowering plants. Today, the tallest measured specimen named Centurion is 99.6 m (327 ft) tall (taller than the highest giant sequoia). Six other eucalypt species exceed 80 metres in height.hard 45% oaksoaks5%populuspopulus15%baobabsbaobabs33%eucalyptseucalypts45%Created by: globalquiz.org. Statistics based on 10230 answers in 4 languages »plants riddles » Where do coast redwoods grow?In the west of the United States. Common names of sequoia sempervirens include coast redwood, coastal redwood and California redwood. It is an evergreen, long-lived, monoecious tree living 1,200–1,800 years or more. This species includes the tallest living trees on Earth. It comes from coastal mountains of Oregon and California. (the west of the USA).hard 45% In Central America onlyIn Central America only16%In the west of the United StatesIn the west of the United States45%in the eastern Brazilin the eastern Brazil17%in the entire North and Central Americain the entire North and Central America21%Created by: Paweł Kołodziejczyk. Statistics based on 9436 answers in 4 languages »maps riddles » Which plant was used to fashion wreaths awarded to victors in Ancient Greece? Laurel. Laurus nobilis is an evergreen tree or large shrub native to the Mediterranean region. Its aromatic leaves are added whole to Italian pasta sauces. The word "Laureate" in 'poet laureate' refers to being signified by the laurel wreath.hard 53% OliveOlive38%LaurelLaurel53%MyrtleMyrtle4%AcanthusAcanthus2%Created by: globalquiz.org. Statistics based on 15170 answers in 2 languages »ancient Greece riddles » What is the largest tree-dwelling animal?Orangutan. Adult male orangutans, reaching a weight of 140 kg or more, spend nearly all their time in the forest canopy where they feed, sleep, breed and raise their young. The females even give birth in a treetop nest.hard 55% PandaPanda19%SlothSloth14%OrangutanOrangutan55%Tree kangarooTree kangaroo10%Created by: globalquiz.org. Statistics based on 13505 answers in 2 languages »apes riddles » Which country has the largest forested area? (by total size)Russia is by far the largest country in the world, and 45% of its area is forested. That gives almost twice as large forested area as in Brazil.hard 56% BrazilBrazil16%CanadaCanada22%RussiaRussia56%CongoCongo4%Created by: globalquiz.org. Statistics based on 23303 answers in 2 languages »geography of Brazil riddles » What is a trigger for opening a sequoia cone?Fire. Young sequoias are able to grow successfully only in mineral soils in full sunlight, free from competing vegetation. They therefore require periodic wildfire to clear the area. Due to very thick bark, the fire doesn't harm sequoia.hard 59% frostfrost19%firefire59%floodflood10%earthquakeearthquake10%Created by: globalquiz.org. Statistics based on 20052 answers in 2 languages »botany riddles » Which trees are very shallow rooted?Siberian larch. In Sibrerian Taiga permafrost occurs and restricts root growth. Trees are therefore prone to windfall.average 62% oakoak6%birchbirch14%willowwillow16%Siberian larchSiberian larch62%Created by: globalquiz.org. Statistics based on 15532 answers in 4 languages »nature riddles » Which conifer is deciduous?Larch (pictured) is among the dominant plants in boreal forests of Russia and Canada. The needles turn yellow and fall in the late autumn, leaving the trees leafless through the winter.easy 72% pinepine10%cedarcedar9%larchlarch72%sprucespruce7%Created by: globalquiz.org. Statistics based on 14466 answers in 2 languages »Canada riddles » Play botany quiz and see all the questions.