Piaget's theory of cognitive development is a comprehensive theory about the nature and development of human intelligence. It was originated by the Swiss developmental psychologist Jean Piaget (1896–1980). ... Piaget's theory is mainly known as a developmental stage theory.

Explanation:

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3 years ago

1)define drugs. 2)what is drug abuse?

umka21 [38]

Answer:

drugs: a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.

There are many causes of drug abuse. The most common include a history of trauma, mental illness, and chronic stress. Experiencing a trauma, such as physical or sexual abuse, accidents, war, or natural disaster, can lead to long-term problems, including post-traumatic stress disorder, or PTSD.

Explanation:

3 0

3 years ago

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I have an anatomy project and I was wondering how I make a valve that will empty into the "lungs" and not go back through?

Hitman42 [59]

Answer:

I Dont Know

Explanation:

I wish I could help you but I need some points so could you help a brother out?

5 0

3 years ago