The Papagni River is a sub basin of Pennar River, India. Water is an important liquid gold. The basin experiences high water deficit due to low rainfall and high loss of water through evaporation and evapotranspiration. Water balance plays a crucial role in the optimum utilization and conservation of water resources. Of all the climatic parameters rainfall is an important input, which controls the irrigation and total cropped area under rained conditions. The water lost in the form of surface run-off, has to be stored adopting watershed management programmes in the basin by constructing check...

The author has been discussed in this book perceptions of secondary school teachers on geography, environmental science and computer education. He endeavour to introduce the geography and environmental science as separate subjects in secondary school curriculum and initiate the teachers value of computer education and computer lab. He randomly choose 28 secondary schools of Ranga Reddy district of Andhra Pradesh, India and he selected five independent variables of teachers like gender, age, educational qualifications, subject teaching and teaching experience and also three dependent...