Saving plants is of paramount importance for several reasons. Plants are the primary sources of food for herbivores. Even carnivores are indirectly dependent on plants, since carnivores consume herbivores. Apart from food, plants are also producers of oxygen, a gas essential for the survival of all aerobic life forms, including human beings. Plants are also a major sink of carbon dioxide, which is a greenhouse gas and is thought to be responsible for climate change. Plants convert sunlight into food and oxygen through the process of photosynthesis.
Apart from these benefits, plants also provide a habitat to various life forms. They also hold soil particles together and prevent soil erosion (from factors such as wind and flowing water, among others). Transpiration of water from plants is a key part of the hydrologic cycle. Several plants also are responsible for fixing nitrogen in the soil and thus keep the soil fertile.
Thus, we need to save plants.
Hope this helps.
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