Answer:
not sure if this is the right way to answer this question but PbS is Phosphate-buffered saline (i think)
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Answer:
im sorry but this question doesnt make sense
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Answer:
Arsenic.
Explanation:
Hello there!
In this case, since insecticides are substances that act as poisons to get rid of insects in order to prevent their presence and/or reproduction in houses, companies, crops and others, a substance that has been widely used is the metalloid arsenic due to its direct affection of the insect's body (movement, performance, cellular functions).
In addition, high levels of arsenic in food could cause arsenic poisoning in humans as well, that is why such practice must be properly performed and by using the correct security protocol.
Best regards!
 
        
             
        
        
        
Answer:
because of the small soot particles
 
        
                    
             
        
        
        
Answer:
0.00000363618 
could be wrong.
double check me someone or just trust me
(don't blame me if you get it wrong)