Notes and Study material for Exams
Energy Efficiency Energy efficiency, means using less energy to provide the same level of energy. It is therefore one method to reduce human greenhouse gas emissions. For example if a house is insulated, less energy is used in heating and cooling to achieve a satisfactory temperature. Another example is installing fluorescent lights or skylights, instead … Read more
Public-Private Sector PARTNERSHIP (PPP) Public-private partnerships between a government agency and private-sector company can be used to finance, build and operate projects, such as public transportation networks, parks and convention centers. Financing a project through a public-private partnership can allow a project to be completed sooner or make it a possibility in the first place. … Read more
Ocean Thermal Energy Conversion (OTEC) is a renewable energy technology that uses the temperature difference between the warm surface water and the cold deep water of the ocean to generate electricity. OTEC is a promising source of clean, sustainable energy that has the potential to provide a significant portion of the world’s electricity needs. OTEC … Read more
Harnessing the Sun: A Deep Dive into Photovoltaic Electricity The sun, a celestial powerhouse, has been a source of fascination and wonder for humanity since time immemorial. Its radiant energy, a gift from the cosmos, has fueled life on Earth for billions of years. Now, in an era defined by the urgent need for sustainable … Read more
Luminescent Solar Concentrators: A Bright Future for Solar Energy The world is increasingly reliant on renewable energy sources to combat climate change and ensure a sustainable future. Solar energy, with its abundance and clean nature, stands as a promising solution. However, traditional photovoltaic (PV) panels, while efficient, often come with high costs and aesthetic limitations. … Read more
The 17 Sustainable Development Goals (SDGs) are: Poverty Hunger Good health and well-being Quality education Gender equality Clean water and sanitation Affordable and clean energy Decent work and economic growth Industry, innovation and infrastructure Reduced inequalities Sustainable cities and communities Responsible consumption and production Climate action Life below water Life on land Peace, justice and … Read more
Natural Resources are useful raw materials that we get from the Earth. They occur naturally, which means that humans cannot make Natural Resources. Instead, we use and modify natural resources in ways that are beneficial to us. The materials used in human-made objects are natural resources. Coal reserves : India has the fifth largest coal reserves in … Read more
What is Geothermal Energy? Geothermal energy is heat from the Earth’s interior that can be used to generate electricity, heat homes and businesses, and provide hot water. The Earth’s core is very hot, about 6,000 degrees Fahrenheit (3,300 degrees Celsius). This heat comes from the decay of radioactive elements in the core. The heat travels … Read more
What is Renewable Energy? Renewable energy is energy that comes from natural sources or processes that are constantly replenished. These include sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy does not produce greenhouse gases or other pollutants, and it is becoming increasingly affordable as technology improves. Why is Renewable Energy Important? Renewable energy … Read more
Epidemic Diseases Complete information on major types of epidemics in India India is endemic to many diseases such as Malaria, Kala-azar, Cholera, Tuberculosis. These erupt in epidemic form when conditions are favorable for their spread. Epidemics are disasters by themselves but these can emerge in the aftermath of other disasters as well. In the recent … Read more