Exploration

Space exploration is a ___ experience.

• danger

• risk

• challenging

Astronauts ___ their lives in Space.

• risk

• located

• ancient

Divers go to ___ hidden caves.

• surface

• explore

• exist

These caves are located ___.

• universe

• deep

• underground

The size of these caves are ___.

• run out

• massive

• extremely

Space ___ is a challenging experience.

• explorations

• expolration

• exploration

___ risk their lives in Space.

• Astronauts

• Astronaut

• Astronuts

Divers go to explore ___ caves.

• hiddens

• hiden

• hidden

These ___ are located underground.

• caves

• cave

• cavees

The ___ of these caves are massive.

• sizee

• size

• sizes