Question

89Г. На основе текста заполните таблицу. Расскажите по не тернативных (возобновляемых) источниках энергии. Альтернативные (возобновляемые) источники энергии Что используется? Что не используется? Почему не истощаются? Почему являются экологически чистыми?​

Answer 1

Объяснение:

Вот. На трёх фотографиях все есть. Составил по тексту.

Answer 2

Alternative (Renewable) Energy Sources

Alternative energy sources, also known as renewable energy sources, are forms of energy that can be replenished naturally and are considered more sustainable compared to traditional fossil fuels. These sources of energy have gained significant attention in recent years due to their potential to reduce greenhouse gas emissions and mitigate climate change. Let's explore some commonly used alternative energy sources and why they are considered environmentally friendly.

Solar Energy

Solar energy is derived from the sun's radiation and can be converted into electricity or used directly for heating and lighting. Solar power systems use photovoltaic (PV) panels to capture sunlight and convert it into electricity. This technology has become increasingly popular due to its abundance and the decreasing cost of solar panels. Solar energy is considered a renewable source because the sun's energy is virtually limitless and will continue to shine for billions of years.

Solar energy is environmentally friendly because it produces no greenhouse gas emissions during operation. Unlike fossil fuels, solar power does not release harmful pollutants into the atmosphere, contributing to cleaner air quality. Additionally, solar panels have a long lifespan and can be recycled at the end of their useful life, reducing waste.

Wind Energy

Wind energy is harnessed by capturing the kinetic energy of the wind and converting it into electricity using wind turbines. Wind turbines consist of large blades that rotate when the wind blows, generating electricity through a generator. Wind power has become one of the fastest-growing renewable energy sources globally.

Wind energy is a clean and renewable source because it does not produce greenhouse gas emissions or air pollutants during operation. Wind turbines have a relatively small environmental footprint compared to fossil fuel power plants. However, it is important to consider the potential impact on wildlife and the visual landscape when installing wind farms.

Hydropower

Hydropower utilizes the energy of flowing or falling water to generate electricity. It is one of the oldest and most widely used renewable energy sources. Hydropower plants typically involve the construction of dams to create reservoirs, which store water. When the water is released, it flows through turbines, generating electricity.

Hydropower is a renewable energy source because water is continuously replenished through the water cycle, driven by the sun's heat. It is considered environmentally friendly because it produces no greenhouse gas emissions during operation. However, the construction of large dams can have significant environmental and social impacts, such as altering ecosystems and displacing communities.

Biomass Energy

Biomass energy is derived from organic materials, such as plants, agricultural waste, and wood. It can be used for heating, electricity generation, and transportation fuels. Biomass can be burned directly or converted into biogas or biofuels through processes like anaerobic digestion and fermentation.

Biomass is considered a renewable energy source because plants and crops can be regrown to replace the harvested biomass. However, it is important to ensure sustainable practices in biomass production to avoid deforestation or overuse of agricultural land. Biomass energy is generally considered carbon-neutral because the carbon dioxide released during combustion is offset by the carbon dioxide absorbed by plants during growth.

Geothermal Energy

Geothermal energy is derived from the heat stored within the Earth's crust. It can be harnessed for electricity generation and heating. Geothermal power plants use steam or hot water from underground reservoirs to drive turbines and produce electricity.

Geothermal energy is renewable because the Earth's heat is continuously generated by the decay of radioactive materials. It is considered environmentally friendly because it produces minimal greenhouse gas emissions during operation. However, the availability of geothermal resources is limited to specific regions with suitable geological conditions.

Conclusion

Alternative (renewable) energy sources, such as solar energy, wind energy, hydropower, biomass energy, and geothermal energy, are increasingly being utilized to reduce reliance on fossil fuels and mitigate the environmental impact of energy production. These sources are considered renewable because they can be naturally replenished over time. They are also considered environmentally friendly due to their minimal or zero greenhouse gas emissions during operation. However, it is important to carefully consider the potential environmental and social impacts associated with the development and utilization of these energy sources.