Question

L - What is mental retardation? state two cause of mental retardation.
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Answer 1

Answer:

Mental retardation is present in about 2 to 3 percent of the population. It can be defined as cognitive ability that is markedly below average level and a decreased ability to adapt to one's environment.

There are various known causes of mental retardation, including genetic disorders, maternal infections, psychosocial conditions, drug exposure, and environmental chemical exposure. The established risk factors for MR include: [3] Various genetic disorders (e.g. Down's Syndrome, phenylketonuria)

Answer 2

Answer:

Mental retardation may be caused by problems that occur during pregnancy and birth, including maternal nutritional deficiencies, toxemia, infections such as rubella, maternal phenylketonuria , use of drugs or alcohol, maternal injury during pregnancy, extreme prematurity.

Explanation:

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