Which desert is the world's coldest?

Which biome covers about 30% of Earth's land surface and is known as 'cold desert'?

Which African biome is famous for its annual wildebeest migration?

What percentage of Earth's land surface is covered by deserts?

Which ocean contains the Great Barrier Reef marine biome?

What type of biome is known as 'taiga' in Russia?

Which famous U.S. National Park is located in the temperate grassland biome?

What percentage of Earth's species live in tropical rainforests?

Which country contains the largest area of tundra?

What animal is known as the 'King of the Savanna'?

What is the largest tropical rainforest in the world?

What is the most common tree type in temperate deciduous forests?

Which marine biome contains the Mariana Trench?

What percentage of Earth's oxygen is produced by rainforests?

Which famous mountain range contains alpine biomes?

What is the largest temperate grassland region in North America?

Which animal is uniquely adapted to survive in the tundra's extreme cold?

What percentage of the Sahara Desert is covered by sand?

Which famous tree is found in the temperate rainforest biome?

What is the average annual rainfall in tropical rainforests?