Brominated flame retardants are used in many household products like mattresses and upholstery. Why is there some concern about their use?
1. They are highly resistant to degradation in the environment.
2. They are able to accumulate in humans and animals.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">?? ????? ???????? ???? ????? ?? ????? ??? ??????????? ????? ???????????? ?? ????? ???? ???? ??? </font><font style="vertical-align: inherit;">???? ????? ?? ???? ??? ????? ????? ???</font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">1. ?? ???????? ??? ?????? ?? ??? ??????? ????????? ????</font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">2. ?? ???????? ?? ??????? ??? ??? ???? ??? ????? ????</font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">???? ??? ?? ??? ?? ????? ???? ??? ????? ??????</font></font></p>
<p> </p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">(?) ???? ? </font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">(b) ? ??</font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">(c) 1 ?? 2 ????? </font></font></p>
<p><font style="vertical-align: inherit;"><font style="vertical-align: inherit;">(d) ? ?? 1 ?? ? ?? 2</font></font></p>
