A bat is a small mammal that is active at night.

We will use arsenic in this chemical experiment.

Indian goosegrass is often seen as a weed in the garden.

We will use arsenic in this chemical experiment.

There are a lot of arrowheads growing in this pond.

Her ring was shining with a diamond in the shape of a rhombus.

There are a lot of water caltrops growing in this pond.

As I walked through the haze, I could see nothing.

This water is dangerous to drink because it contains arsenic.

Arsenic is one of the elements widely distributed in nature.