Q: What element once commonly used in paint and gasoline has now been found to have dangerous effects?


Read this paragraph and choose the correct option from the provided answers:

lead: An element that was once commonly used in gasoline and paint, is now found to have dangerous effects, such as brain damage. Lead contamination has many harmful effects on the body.

 Choices:

- plastic

- chromium

- niacin

- lead


A:
lead