What happens if all the plants on earth disappear?

Plants are very necessary for people. We not only admire their beauty, but also eat them, use them to make various items. Most importantly, plants absorb carbon dioxide and release oxygen. They are called the “lungs” of our planet. If all plants on earth disappear, then many living organisms will die. People, birds, animals, fish cannot survive without oxygen. An excess of carbon dioxide and a lack of oxygen will greatly change the population and appearance of the Earth. Our planet will become lifeless and desolate.