Does the equator pass through Brazil?
In what year did the Maastricht Treaty, which created the European Union, enter into force? Answer with the year only.
Which chemical element has the symbol He?
In what year did the First World War begin?
Which company created the iPhone?
Which is the longest river in South America?
Which ocean is the largest by surface area?
Which is the hardest natural mineral on the Mohs scale?
Which chemical element has the symbol Au?
Which chemical element has the symbol Sn?
How many sides does a hexagon have?
In what year was Reddit founded?
How many chromosomes are in a typical human body cell?
Which scientist wrote the Principia Mathematica in 1687?
Which scientist proposed the theory of general relativity?
Which gas do plants absorb from the air for photosynthesis?
Which chemical element has the symbol Fe?
Which naturalist wrote On the Origin of Species?
Which organ pumps blood through the human body?
Which is the highest mountain on Earth above sea level?
What is the atomic number of carbon?
How many planets are in the Solar System?
