MillionFacts 
What is the state rock of South Dakota?
- Where is the Amazon River’s source?
- What is the largest living organism by weight?
- What causes stalactites to form in caves?
- What is the state animal of Hawaii?
- Why do some animals hibernate during the winter?
- What is the most famous university in the United States?
- Where is the world’s highest peak located?
- What is the state animal of New Hampshire?
- How do cheetahs live?
- How do wolverines live?
- What causes a solar eclipse?
- What is the difference between savings and investments?
- What causes fog to form?
- How do camels survive extreme heat in the desert?
- What is the UK’s most famous monument?
- How do wading birds live?
- What is the role of the International Monetary Fund (IMF) in stabilizing global economies?
- What causes hot springs to form?
- How do sloths move so slowly?
- Why do some animals have specialized tongues?
- How do camels store water in their bodies?
- What countries does Sudan border?
- Why do some animals have nocturnal habits?
- Where is the world’s largest rainforests located?
- How do bats find their food at night?
- How does a plane fly?
- What is the role of the endocrine system?
- Why do polar bears have black skin?
- What is the function of the kidneys?
- What is the Lightning Network in cryptocurrency?
- How do fireflies control their light?
- What is the role of the digestive system in human nutrition?
- What is the most famous Canadian island for nature exploration?
- How do dolphins sleep without drowning?
- How do butterflies migrate long distances?
- What is the role of miners in Ethereum?
- What causes ocean currents to circulate globally?
- What is the most famous university in the United States for research?
- Why do desert plants have shallow roots?
- How do squirrels live?
- What is the most famous mountain in the United States?
- How do jellyfish catch their prey?
- What causes the tides in the ocean?
- What is the UK’s most famous palace?
- What is the UK’s most famous museum?
- Why do deserts have such low humidity?
- What is the role of chlorophyll in plants?
- What is the UK’s most famous landmark in the countryside?
- How do whales live?
- What is the UK’s most famous royal residence?
- How do octopuses defend themselves from predators?
- What is the state tree of South Dakota?
- Where is the deepest point on Earth’s surface?
- What causes auroras to occur only near the poles?
- What countries does Kazakhstan border?
- What is quantitative easing (QE) and how does it work?
- What is the role of the immune system in the human body?
- Why do some animals have long necks?
- What is the national flower of Northern Ireland?