I had to make a new account i was 369379 but it dosent work anymore afar0800

Abanana can be an excellent source of potassium in our diet. there is a naturally occurring, long-lived, radioactive isotope of potassium, 40-19k, which has a natural abundance of 0.0117% and a half-life 1.27 billion years. estimate the activity of a typical banana due to this potassium isotope assuming that most of the mass is in stable potassium.

In which way does nicotine cause addiction? by stimulating the brain’s pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

Which method of administration would result in the highest concentration of the drug in the brain?