Most psychoactive drugs create their changes in mood, energy, or perception by changing

By changing the body’s supply neurotransmitters. Drugs change neurotransmission by working together with molecular components of the sending and receiving method excluding receptors. For example, cocaine fastens to the dopamine transporter, the molecular conduit that draws free-floating dopamine out of the synapse and back to the sending neuron. On condition that cocaine occupies the transporter, dopamine cannot re-enter the neuron. It builds up in the synapse, stimulating receiving-neuron receptors more copiously and creating much greater dopamine impact on the receiving neurons than occurs naturally.

the correct answer is individualism and exchange. at this stage, children begin to question the rules, because they can see that there is more than one side to them. different individuals have different viewpoints. they won't be able to reach this stage because of ignorance, a lack of ethics or personal biases. that is because people with that characteristiscs are not able to distinguish what is good or what is bad and they can't pursue their individual interests.

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.