Gallium is one of the elements on the periodic table.

Osmium is the densest element on Earth.

Francium is a radioactive alkali metal that is hardly present in nature.

Actinium is a radioactive chemical element with the symbol Ac and atomic number 89.

The beaver uses wood to build a dam in the river.

The sea lily is a beautiful creature that lives in the deep sea.

He is living as a farmer.

We plan to enjoy fishing in the open sea this weekend.

Americium is one of the radioactive elements.

Sea turtles are beautiful creatures of the sea.