Notes and Study material for Exams
Methane: A Potent Greenhouse Gas with a Complex Story Methane (CH4), a colorless, odorless gas, is a potent greenhouse gas (GHG) that plays a significant role in global climate change. While less abundant in the atmosphere than carbon dioxide (CO2), methane is far more effective at trapping heat, making it a critical factor in understanding … Read more
Biogas- principle and process Principle of biogas production Biogas is generated when bacteria degrade biological material in the absence of Oxygen, in a process known as Anaerobic Digestion. Since biogas is a mixture of methane (also known as marsh gas or natural gas, CH4) and carbon dioxide it is a renewable fuel produced from waste … Read more
Bruntland Report (1983) was the first publication and recognition of the term ‘Sustainable Development’ “meeting the needs of the present generation without compromising the needs of the future generation” Three pillars of sustainable development (Bruntland) Care and respect for People, Planet and Prosperity (Commercial Activities) <hence POVERTY alleviation, conservation and business development> These three pillars … Read more
Biotechnology and its Applications Biotechnology is defined as the industrial application of living organisms and their biological processes such as biochemistry, Microbiology, and Genetic engineering, in order to make best use of the Microorganisms for the benefit of mankind. Modern biotechnology provides breakthrough products and technologies to combat debilitating and rare diseases, reduce our environmental … Read more
Global Warming and Its Impact Global warming is the slow increase in the Average temperature of the earth’s Atmosphere because an increased amount of the energy (heat) striking the earth from the sun is being trapped in the atmosphere and not radiated out into space. The earth’s atmosphere has always acted like a greenhouse to capture the … Read more
India’s Journey Towards Ozone Layer Protection: A Balancing Act of Development and Sustainability The ozone layer, a fragile shield in the Earth’s stratosphere, plays a crucial role in absorbing harmful ultraviolet (UV) radiation from the sun, protecting life on Earth. However, human activities, particularly the release of ozone-depleting substances (ODS), have threatened this vital layer, … Read more
Harnessing the Sun’s Power: A Deep Dive into Concentrated Solar Power The world is facing a pressing need to transition away from fossil fuels and embrace renewable energy sources. Among the many promising options, Concentrated Solar Power (CSP) stands out as a technology with the potential to play a significant role in meeting our energy … Read more
Science and economics of Climate change Science of Climate Change The Atmosphere functions as a ‘greenhouse’ and insulates the earth from extremes of temperature. The Greenhouse Effect works in the following manner. Of the incoming short-wave radiation from the sun, one-third is reflected, and the atmosphere, ocean, ice, land, and biota absorb the … Read more
Natural Resources, their sustainable management and conservation A natural resource is something that is found in nature and can be used by people. Earth’s Natural Resources include Light, air, water, Plants, animals, Soil, stone, Minerals, and fossil fuels. People need some natural resources to stay alive. They use others to make their lives … Read more
Development of non-conventional sources of energy is of prime importance for the sustainable and Energy Resources are depleting at an accelerated rate and non-conventional resources could play a leading role in Energy Security in the state. Non-Conventional energy resources could minimise the transmission cost and energy divide between the remote locations [su_heading size=”21″]Solar[/su_heading] Rajasthan … Read more