Select the INCORRECTLY spelt word in the given sentence.
The islands of Japan were connected to the Asian landmass about 12,000 years ago;
the first Japanese travelled across the water in serch of animals to hunt.

The correct answer is Option 2: Serch.

Explanation:

Let's analyze the spelling of the words from the given sentence and options:

1. Landmass: Spelled correctly. It refers to a continuous area of land.
2. Serch: This word is incorrectly spelt. The correct spelling is Search, which means to try to find something by looking carefully.
3. Connected: Spelled correctly. It means joined or linked together.
4. Islands: Spelled correctly. It refers to pieces of land completely surrounded by water.

Therefore, the incorrectly spelt word in the sentence is Serch (correct spelling: Search).