Plants help humans in many ways. The food that we eat, the home that serves as our shelter, the medicine that cure our illnesses, as well as the fuel that is used by our automobiles are all from plants.
From the options provided, the following are ways where plants help humans.
1. Plants act as a carbon sink. They are the one responsible for the absorption of CO2 from the atmosphere in the process of photosynthesis.
2. Plants aid in the absorption of water in the soil to prevent flooding and erosion.
3. Bioremediation is a technology that uses plants in order for humans not to fell the harmful effect of environmental hazards. This process is a way for the cleaning of water resources as well as improvement of the quality of air.
Abscission is the separation of a the part of the plant to its organ.