Resource planning refers to the strategy for planned and judicious utilisation of resources. Resource planning is essential for sustainable existence of all forms of life.
(i) Preparation of inventory of resources. (ii) Evaluation in terms of availability for development. The first stage includes surveying, mapping and measurement of characteristics and properties of resources.
They are made by melting glaciers
Hope this helps!! :)
Uh none of those are right but the closest answer is 60 million