i. The resources over the earth are distributed unequally because of the diverse nature of terrain, climate, altitude, water and other physical factors over the earth.
ii. The term resource conservation means to use the available resources for constructive purposes without wasting them over a long period of time.
iii. Human resources are important because it is the humans who can make use of the natural resources in the best way possible without wasting them. Animals do not use the resources cautiously as they are nomads.
iv. Sustainable development is the usage of resources in such a way that the process of formation and process of exploitation are equal so that the resources can be used for several years. In short, the usage of resources for development in a way that the next generation also gets access to these resources is called sustainable development.