Easy Easy difficulty. Trees What tree's fruit is pressed to make olive oil? Answer Olive tree Draw the answer
Intermediate Intermediate difficulty. Trees What is the scientific name of the Moroccan tree whose kernels are used to make argan oil? Answer Argania spinosa Draw the answer
Hard Hard difficulty. Trees Which sacred fig in Sri Lanka is often cited as the oldest living human-planted tree with a known planting date? Answer Jaya Sri Maha Bodhi Draw the answer
Intermediate Intermediate difficulty. Trees Which tree, also called kukui, is the official state tree of Hawaii? Answer Candlenut Draw the answer
Hard Hard difficulty. Trees Which extinct tree genus formed vast Carboniferous coal-swamp forests with scale-like bark? Answer Lepidodendron Draw the answer
Hard Hard difficulty. Trees Which tree species is the tallest flowering plant, native to Tasmania and Victoria? Answer Eucalyptus regnans Draw the answer
Intermediate Intermediate difficulty. Trees Which tree species produces the nuts called pecans? Answer Carya illinoinensis Draw the answer