If the plants and animals disappear from the Earth's surface, then the ecological balance will be disturbed. Without plants there will be no oxygen available for breathing after some time and everybody will die.

Life could not exist on Earth without trees because they produce most of the oxygen that humans and wildlife breathe. Trees absorb carbon dioxide from the atmosphere and release oxygen using the process of photosynthesis. There would also be no rain without trees since trees absorb water from the soil and release it through evapotranspiration. Water vapor released through evapotranspiration is the major mechanism by which air is remoistened. Forests act as giant air filters for the world. Trees purify the air by absorbing pollutants such as sulfur dioxide and nitrogen dioxide, reducing pollution. Trees also help prevent topsoil erosion because they break the force of wind and rain on soil, their roots bind the soil, and their decayed, falling leaves are absorbed by the earth and enrich the soil. Trees conserve rainwater and reduce water runoff and sediment deposit after storms.Additionally, trees provide a supply of lumber, seeds, and fruit. Further, dead trees that fall and get buried in the soil eventually provide fossil fuels such as coal and petroleum products, among other things. Trees can also act as noise filters. Trees muffle urban clamor almost as well as walls do. Trees planted at strategic locations can decrease loud noises from airports and highways.

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Introduction:
Animals and plants play a crucial role in maintaining the balance of ecosystems and the overall well-being of the planet. If they were to disappear from the Earth's surface, it would have severe consequences for both the environment and human beings.

Impact on Ecosystems:
1. Disruption of Food Chains: Animals and plants are interconnected through complex food chains and webs. The disappearance of one species can have a cascading effect on others, leading to imbalances in the ecosystem.
2. Loss of Biodiversity: Animals and plants contribute to the rich biodiversity of the planet. Their disappearance would result in a significant loss of species, reducing the overall genetic diversity and making ecosystems more vulnerable to environmental changes.
3. Imbalance in Nutrient Cycling: Plants are essential in nutrient cycling as they absorb carbon dioxide and release oxygen through photosynthesis. Without plants, there would be a lack of oxygen and an excess of carbon dioxide, leading to air pollution and climate change.
4. Disruption of Pollination: Many plants rely on animals for pollination. With the disappearance of animals, the pollination process would be severely impacted, resulting in a decline in plant reproduction and a decrease in agricultural productivity.
5. Loss of Habitat: Animals and plants provide habitats for numerous other species. Their disappearance would lead to a loss of suitable living spaces, resulting in a decline in the population of dependent organisms.

Impact on Human Beings:
1. Lack of Food: The disappearance of animals would lead to a decline in the availability of meat, dairy products, and other animal-derived foods. Additionally, the loss of plant species would reduce the variety and quantity of fruits, vegetables, and grains.
2. Health Issues: Many medicines are derived from plants and animals. Without them, the development of new drugs and treatments would be hindered, impacting human health.
3. Economic Consequences: Industries such as agriculture, forestry, and fishing heavily rely on animals and plants. Their disappearance would result in significant economic losses and unemployment.
4. Loss of Cultural and Recreational Value: Animals and plants hold cultural and recreational value for many communities. Their disappearance would lead to the loss of traditional practices, spiritual beliefs, and recreational activities like bird-watching or hiking.

Conclusion:
The disappearance of animals and plants from the Earth's surface would have far-reaching consequences for ecosystems, human well-being, and the overall sustainability of the planet. It is essential to conserve and protect these invaluable resources to maintain the delicate balance of nature.