Abstract- Present age is the age of development of information’s technology; everyone wants all the information’s on his fingertips. To fulfill these requirements the remote sensing has emerged as a new but most important art and science of collecting information’s about any object, area or phenomena without any direct contact with it. The present paper is an attempt to give a brief knowledge about remote sensing and its advantages over the conventional methods of sensing or data collection. Monitoring the environment is essential to understanding and mitigating the impact of human activities on ecosystems. The increasing complexity and interconnectivity of environmental factors necessitate advanced tools that can provide comprehensive and real-time data.