When you take a pain reliever like ibuprofen, it keeps injured or damaged cells from making and releasing prostaglandin. When the cells don't release this chemical, it means that the brain won't get the pain message as quickly or clearly.
Answer:
an enzyme! Keep in mind that an enzyme catalyzed the rate of a reaction. A normal reaction must climb the activation barrier independently, while the one catalyzed by an enzyme has a lower activation barrier due to added stability.
When the sea floor spreads or collides it creates breakages which would be ocean ridges and deep sea trenches
Liters because liters are larger than milliliters.
You would expect a scratch on the quartz since quartz is on a hardness scale of 7 and the mineral you are rubbing against it is at a hardness scale of 7.5
