All commercial chemicals must be screened for toxicity before they are allowed to be released in the marketplace.

True.

Explanation:

Chemical products, in general, can be dangerous to human health and the lives of other living beings. This is because these products can be toxic, cause disease and are liable to cause accidents. In order to inform people about these dangers and to ensure a minimum of safety in the use of these products, it is necessary that all commercial chemicals be examined before they are launched on the market. This analysis is done mainly with regard to toxicity, to ensure that anyone who uses the chemical does not run the risk of poisoning. These chemicals are mainly present in cleaning products and cosmetics.