interact verb [I]. âº to âcommunicate with or âreact to each other: He does not interact well with the other âstudents. interaction noun [C/U] us /ËÉªnÂ·tÉrËaekÂ·tÉrËÃ¦k/ âº [ÊÉn] âc drug. interactions [Noun/C] u /usÂ·ËÉªnÂ·tÉrËaek/. tÉrËÃ¦k ÊÉn
Scientists estimate a safe oxygen consumption of 50 liters per hour for a human. Meanwhile, a leaf gives off about five milliliters of oxygen per hour. A person would need to be in a room with about ten thousand leaves. About 300 to 500 plants would produce the right amount of oxygen.
Confidence votes 27.9K. Plants give us oxygen because they (the plants) breath in what we (the humans) breath out. And they also help us by growing food for us such as fruit or vegetables.plants give us oxygen. Everything either eats plants, or eats something that eats plants.1  plants convert carbon dioxide to oxygen.onfidence votes 27.9K. Plants give us oxygen because they (the plants) breath in what we (the humans) breath out. And they also help us by growing food for us such as fruit or vegetables.