Notes and Study material for Exams
Solar-Thermal Electricity Introduction Solar-thermal electricity is a form of renewable energy that uses the sun’s heat to generate electricity. It is a clean and efficient way to produce electricity, and it has the potential to play a major role in the world’s energy future. How does solar-thermal electricity work? Solar-thermal electricity systems use mirrors or … Read more
Photovoltaic Electricity Photovoltaic (PV) electricity is a type of solar energy that converts sunlight into electricity using semiconductors. PV cells are made of materials that allow electricity to flow when light hits them. When sunlight hits a PV cell, it knocks electrons loose from their atoms. These free electrons flow through the cell, creating an … Read more
Solar Energy Solar energy is a type of renewable energy that comes from the sun. It is a clean and sustainable source of energy that can be used to generate electricity, heat water, and power vehicles. How does solar energy work? Solar energy works by converting sunlight into electricity or heat. This can be done … Read more
Installed power generation capacity in India India is the world’s third-largest electricity producer, after China and the United States. The country’s installed power generation capacity has grown rapidly in recent years, and is now over 390 gigawatts (GW). This growth has been driven by a number of factors, including rising demand for electricity, government policies … 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
Measures to control acid rain Acid rain is a serious environmental problem that has been affecting the planet for decades. It is caused by the release of sulfur dioxide and nitrogen oxides into the atmosphere, which react with water vapor to form sulfuric and nitric acids. These acids then fall back to Earth as rain, … Read more
What is acid rain? Acid rain is a form of precipitation that is highly acidic, meaning that it has a low pH. The pH scale ranges from 0 to 14, with 7 being neutral. Anything below 7 is considered acidic, and anything above 7 is considered alkaline. The pH of normal rain is about 5.6, … Read more
Difference between normal and anthropogenic acidified lakes Acidification of lakes is a serious environmental problem that can have a devastating impact on aquatic ecosystems. There are two main types of lake acidification: natural and anthropogenic. Natural acidification occurs when rainwater reacts with minerals in the soil and rocks, releasing acids into the water. This process … Read more
Characteristics of Acid Rain Acid rain is a form of precipitation that is acidic, meaning that it has a pH below 7.0. The pH scale ranges from 0 to 14, with 7 being neutral. A pH below 7 is acidic, and a pH above 7 is alkaline. Acid rain is caused by the emission of … Read more
Sources of Compounds Causing Acid Rain Acid rain is a form of precipitation that is more acidic than normal rain. It is caused by the emission of sulfur dioxide and nitrogen oxides into the atmosphere, which react with water vapor to form sulfuric acid and nitric acid. These acids then fall to the ground as … Read more