1 the best recruiting agents

According to psychologists

1. 
   the instinct for aggression normally exists only during childhood
   
2. 
   if the child's aggressive instincts can't be eliminated, he'll revenge himself in his later life
   
3. 
   aggressiveness is an instinct which exists in all human beings
   
4. 
   the problem of cruelty is too difficult for parents to deal with on their own
   
5. 
   combative and aggressive instincts should be repressed in childhood so that the person won't turn out to be a cruel adult
   

2. 
   Psychologists suggest that to cure cruelty,
   

1. 
   first of all, the causes of it should be found out so that the best results can be obtained
   
2. 
   the child should be directed to spending his energy on what he is really interested in
   
3. 
   the child should be persuaded to give up his desire to hurt living things
   
4. 
   parents and teachers should work in cooperation with psychologists
   
5. 
   the child should be provided with an environment which will keep him in contact with society
   

3. 
   It's pointed out in the passage that
   

1. 
   aggressiveness is the result of parents using authoritative approaches against the child
   
2. 
   the aggressive instinct of a person can only be cured by psychologists
   
3. 
   parents are not aware of the dangers of repressing the aggressive instinct in the child
   
4. 
   if a child has a desire to hurt living things, parents should use more authority on him
   
5. 
   in serious cases of cruelty, parents' or teachers' understanding approach won't be a sufficient cure
   

22 HEADSET STEREOS
Most headset stereos have one thing in common: they can cause hearing loss. Studies have shown that sound levels from the machines can reach 115 decibels or more – roughly equivalent to standing 100 feet from a commercial jet at the moment of take-off. At that level, permanent hearing damage can occur after just 15 minutes. And the earlier a child begins using a headset, the more damage can accumulate. Loud noise causes hearing loss by killing irreplaceable hair cells in the inner ear. Normally, the process occurs slowly as people age, but noise damage can accelerate it.
Noise-induced hearing loss is insidious; damage may not be apparent until later in life. Since headsets are used privately, parents often don't realize how loud their children's music is.

1.