Divergent Boundary These boundaries form the global mid-ocean ridge system which is the largest mountain chain on Earth. Plate Tectonics Find out lots of fascinating facts and interesting trivia on plate tectonics.
Marijuana comes from the hemp plant Cannabis sativa. It has an active ingredient called THC that makes you feel high. THC and other compounds in marijuana can also affect the way your body works. Most people smoke the plant's dried leaves, flowers, stems, and seeds. But marijuana can also be mixed into food (like brownies, cookies, and lollipops), brewed as a tea, or inhaled with a vaporizer.
While these and other effects seem harmless, they can take a toll on the body. 1  Increased heart rate. When someone uses marijuana, heart rateânormally 70 to 80 beats per minuteâmay increase by 20 to 50 beats per minute or, in some cases, even double. 2  Respiratory (lung and breathing) problems.