How many continents are there on Earth?
There are seven continents on Earth, and they are from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: How many continents are there on Earth?
### Input: 
### Response: There are seven continents on Earth, and they are from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia.