Question

Personal computers are composed of many different materials known to be potentially harmful to humans and the environment. these materials include beryllium, cadmium, lead, mercury, selenium, polyvinyl chloride, and _____.

Answer 1

Brominatedflameretardants.

Explanation:.

These are general synthetic chemicals(organo bromine compounds) used as additives in computers and other electronics, also in textiles and plastic materials. They generally reduced flammability in theses materials.

Continuous exposure to these chemicals in large amounts is toxic to health especially in children. It has been associated with neuro-behavioural effects,endocrine malfunctions, cancer

Step-by-step explanation:

Answer 2

Chromium

Step-by-step explanation:

These are heavy metals that have been found to be present in personal computers. These metals have been reported to have harmful effects on humans and the environment. They have been reported to be carcinogenic (cancer causing) and not easily degraded.