The wind got stronger, and the petals scattered.

I learned about the properties of arsenate in chemistry class.

We will use arsenic acid in this chemistry experiment.

We will use arsenic in this chemical experiment.

There are a lot of arrowheads growing in this pond.

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

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

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.