A quiz

What is the longest river in the world?
1. The Amazon
2. The Mississippi
3. The Nile
What is the highest mountain in the world?
1. Mount Everest
2. Mont Blanc
3. Mount Kilimanjaro
What is the largest continent?
1. Africa
2. Asia
3. America
What is the smallest country in the world?
1. The Vatican City
2. Luxemburg
3. Andorra
What is the largest animal in the world?
1. an elephant
2. a blue whale
3. a shark
What is the fastest animal in the world?
1. a lion
2. an ostrich
3. a cheetah
What is the biggest city in the world?
1. Tokyo
2. Calcutta
3. New York
Which is the heaviest metal?
1. lead (Pb)
2. gold (Au)
3. iron (Fe)