This math problem requires finding out what the base of the logarithm is.

What is at the bottom of this lake?

What is this organism?

I often go to the sea on weekends.

Umi is my best friend.

The sea breeze feels comfortable.

He found the sea on an old map.

He found the sea on an old map.

I love swimming at the seashore.

He decided to lease the fee interest in that land.