How many natural wonders of the world are there?
There are seven.
Is this - a) Victoria Falls or b) the Great Barrier Reef?
This is the Great Barrier Reef.
Is this - a) the Grand Canyon or b) Mount Everest?
This is Mount Everest.
Is this - a) the Aurora Borealis or b) Paricutin?
This is the Aurora Borealis.
Mount Everest is the tallest what?
Mount Everest is the tallest mountain in the world.
Can you find coral in the Great Barrier Reef?
Yes, you can.
