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Allushta [10]
3 years ago
15

Researchers have attributed the development of adhd to

Social Studies
1 answer:
adell [148]3 years ago
4 0
Researchers believe ADHD can be caused by pesticides, smoking during pregnancy, drinking during pregnancy, lead exposure, food additives, brain injury, and genetics.

Hope this helps :D
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Answer:

To an important extent it is true that World War II was motivated by revenge, at least in Europe.

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An advancement in the field of learning that took place during the Han Dynasty:

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