(Originais Teachy 2024) - Question Medium of Sciences

The asthenosphere is an intermediate layer between the upper and lower mantle, responsible for the movements of tectonic plates due to its elasticity with high temperatures ranging from 700°C to 1,000°C. With which geological process is it related?

The ozone layer, located in the stratosphere, is responsible for filtering most of the ultraviolet radiation emitted by the Sun. Its role is crucial in protecting life on Earth, as excessive exposure to this radiation can cause serious damage to the skin and contribute to the development of skin cancer. However, the action of chemicals released into the atmosphere, such as chlorofluorocarbons (CFCs), has led to a process of ozone layer depletion, making it thinner and less efficient. Considering this context, answer: 1. Explain what CFCs are and how they are related to the destruction of the ozone layer. 2. Discuss the possible consequences for the planet if the depletion of the ozone layer continues at the current rate, considering the interactions between the ozone layer and the different terrestrial and marine ecosystems.