Put the words in the correct order to make sentences. 1)

1) traveled / people / by / the / sea / past / In.
People traveled by sea in the past.
2) the / largest/ world / country / in / Canada / the / is / second.
Canada is the second largest in the world.
3) like / churches / to / Tourists / Ukraine / visit / mane.
Tourists like visit main churches to Ukraine.
4) in / animals / Nowadays / danger / are / many.
Many Animals are danger in nowadays
5) protect / pollution / must / People / the / environment / from.
People protect must pollution from the environment.