Choose the correct word for each definition.

Choose the correct option.

To take part in something. [Participant|Participate|Particular]
The solid surface of the earth that lies under the ocean. [Seabed|Seaboard|Seabird]
All people of nearly the same age. [Generic|Generation|Generalisation]
Expected to do something soon and having opportunities for it. [Prospecting|Prospective|Prospectus]
A line of corals under the surface of the water. [Reek|Reef|Rail]
To consider or have an opinion about something or someone. [Regulate|Regain|Regard]