Shraddha Singh – författare

The Olympiad sample papers have been developed by experts in their respective fields to make students familiar with the syllabus covered in the exam and the questionasking pattern followed by the marking scheme. Set on the lines of MCQ (Multiple Choice Questions) format adopted in the exam, there are two sets of papers on each of Mathematics, Science, Cyber and English Olympiads for Class 7. Answers keys are given to enable students to verify the correctness of the answers. Where necessary, steps to solving questions are also given. Students can practice through these papers, check their scores, and assess their level of preparedness and knowledge. This kind of meticulous attention to detail is sure to help them make a smart plan and strategy for preparation of these challenging NCO, NSO, IEO and IMO exams. From the sample papers, students will get a fair idea about the type of questions asked in the examination. In this series, we present for students a full range of sample papers from Class 1st to 10th. Syllabus, question patterns, and marking arrangements are given so that the student can learn and prepare for the exam accordingly. These sample papers will prove to be of premier importance while preparing for the Olympiad exams.

This book addresses the global challenge of feeding a growing population while grappling with diminishing land resources, deteriorating soil quality, and the impact of climate change. Its core focus is the role of soil health in sustaining and enhancing crop production. Key factors for successful agriculture include organic carbon levels, microbial activity, nutrient availability, optimal pH, and redox conditions. Additionally, the book explores the issue of agricultural waste, including rice and wheat straw, surplus vegetables, and various forms of biological waste like kitchen scraps and animal waste, all of which contain valuable nutrients.The book highlights the significance of harnessing the potential within biological waste, rich in essential elements such as phosphorus, potassium, iron, zinc, and copper. It emphasizes the sustainable use of biochar, a material produced through the pyrolysis of diverse biological waste sources. Biochar application, explored in various dosages for different crops and fields, can effectively enhance soil pH, redox potential, organic carbon content, and essential nutrient availability while mitigating the bioavailability of toxic metals. It includes the generation and characterization of biochar, shedding light on its vital role in abiotic stress amelioration and growth and yield improvement of crops. This book is a resource material for students, academicians, and scientists seeking up-to-date insights on biochar. By addressing the critical intersection of sustainable agriculture, waste management, and soil health, this book equips readers with a valuable resource to navigate the challenges of modern farming practices.