Tag lies

A fun game! I'll start by telling a statement, and you try to guess which one is the lie. Then, you can tell a statement, and I'll try to guess which one is the lie.

Here's my statement:

1. The Great Barrier Reef is the largest coral reef system in the world.
2. The shortest war in history was between Britain and Zanzibar on August 27, 1896, and lasted only 38 minutes.
3. The human nose can detect over 1 trillion different scents.

Can you guess which one is the lie?