Egon can’t pay attention in class. he is easily distracted, won’t sit still, and displays poor impulse control. the school counselor suggested that his parents take him to a doctor to have him assessed for . asperger’s syndromeb. attention deficit hyperactivity disorderc. autism spectrum disorderd. schizoid personality disorder

B. attention deficit hyperactivity disorder

Explanation:

Attention deficit hyperactivity disorder is a chronic neurobiological disorder characterized by inattention, restlessness and impulsivity. These signs must manifest themselves in childhood, but they can last a lifetime if not properly recognized and treated. Children with this disorder are easily distracted, do not stand still, and exhibit poor impulse control.

Egon has these symptoms, so his parents were suspicious that he could have this disorder. This justifies Egon's parents' desire to take him to a doctor to be evaluated for attention deficit hyperactivity disorder.

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals