Oysters start out as larvae, so small that they are invisible to the naked eye. In about a year, they can grow to 1 â 1-1/2 inches. They usually reach market size within 18 months to 2 years time. Sometime during July and August for a period of two to three weeks, oysters spawn. The water around them can acquire a milky quality. All of their energies during this time are utilized for reproduction.
DrugFacts: Cocaine. Cocaine is a powerfully addictive stimulant drug made from the leaves of the coca plant native to South America. It produces short-term euphoria, energy, and talkativeness in addition to potentially dangerous physical effects like raising heart rate and blood pressure.
Home / Drug Information / Psychoactive Drugs. There are many different types of psychoactive drugs being abused by addicts all over the world. Psychoactive drugs are chemical substances that affect the brain functioning. The most common of the psychoactive drugs includes substances such as Marijuana.