Answer: The planet would most likely be lifeless and desolate.
Step-by-step explanation:
The earth atmosphere is a sphere where, the mass of gases exists. This mass of gases is called as air. Various important gases such as oxygen, carbon dioxide and nitrogen are present in the atmosphere which are necessary for sustaining lives of the living organisms.
The plants and other autotrophs require carbon dioxide for photosynthesis and oxygen for respiration. They also require nitrogen for synthesis of proteins and nucleic acids. Thus if the plants do not sustain on earth, the other organisms which are dependent on them for food and other needs will also not sustain. Hence, the planet earth will become lifeless and uninhabited.