Practice and Apply Read each sentence. Identify the words with the

Latin roots mar and nav. Tell what each word means. Use a print or online

dictionary to check your ideas.

1. Sailors in the navy may spend time in submarines

2. Mariners long ago navigated using the stars.

Using navigation equipment, fishermen found a region of rich marine life.

4. Boats set out from the marina to sail up the river, which is navigable to

the waterfalls.