What is the (tall) mountain
Mt. Everest is the tallest mountain.
What is the (long) river?
The Nile is the longest river.
Which animal is the (tall)?
The giraffe is the tallest animal.
What is the (big) land animal?
The elephant is the biggest land animal.
What is the (big) sea animal?
The blue whale is the biggest animal.
What is the (deep) ocean?
the Pacific Ocean is the largest.
Which country is the (old)?
Egypt is the oldest country.
What is the (fast) animal?
The cheetah is the fastest animal.
Which country is the (cold)?
Russia is the coldest country.
What is the (long) wall?
The Great Wall of China is the longest wall.
Which country is the (big)?
Russia is the biggest country.
Which star is the (big)?
The sun is the biggest star.