Find the error search it up if u want

Is the error the words

There’s no information under the photos at the side? I’m not sure though sorry!

Pacific ocean is the biggest ocean in the world

1. why do astronomers think that there may be other advanced civilizations?
because  it was discovered that there are other planets like earth out there, able to  accommodate life forms.
2. what technologies are astronomers using to look for life on other planets? why?  
they  have used radio telescopes, but now they use laser telescopes   to track laser communications.