The only independent variable in this experiment is the amount of nitrogen Sarah uses. All of the other variables are dependent on other factor and processes, but Sarah controls the amount of nitrogen that she uses for each plant.
Marijuana
Marijuana is a psychoactive drug and it includes the dried leaves, seeds, stems and flowers, from the Cannabis sativa or Cannabis indica plant. Marijuana is a federal illegal drug and it contains tetrahydrocannabinol (THC); a compound that has intoxicating effects and other similar compounds. The use of marijuana during pregnancy can lead to damaging health consequences for both the mother and baby. Marijuana is associated with lower birth weight, and high risk of brain, and behavioral problems in babies.
This image shows a Convergent boundary
1. "What makes certain people faster than others?"
2. Sally was concerned after she noticed her friend was faster than her.
3. The height of Sally's classmates
4. I would say quantitative because it is the time in numbers it took each person to run the mile.
5. The heights of her classmates, how much they excersize, etc.
6. Everyone ran one mile, all of the classmates are girls, etc.
7. There is no control group.
8. There was only one trial in this experiment.