But they all pose a risk to society when they're at large.
Today they pose a risk and a challenge for every country.
He and other federal officials said the rice posed no risk to health or the environment.
Which of the following does not pose a risk to wildlife?
Not everyone thinks that early computer use poses a risk to children.
"It's about an individual who posed a very serious risk to the community," she said.
Normally, the change poses little risk if used for a short period.
But waiting for the right moment poses even more serious risks.
But he said they would not pose a risk to the stability of the country.
Some waste treatment activities only pose a low risk to the environment or human health.