We need to use Resources Carefully Due to Following Reasons = 
1.Non - Renewable Resources Are Used in a Large Amount bcoz of which The Prices Are Going Higher 
2. Though We have Resources Easily Available Today But If the Use Of Resources Just Keep Increasing Then A Time Will Come when People will Fight For Resources
3.Resources need to be conserved as The Time Taken to Utilize This Resources is very less While The Formation Of Resources like Fossil Fuel Takes Millions Of Years

Hope U Understood
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We need to use our resources carefully so that it cannot be get wasted by us as well as it can be saved by which we can also use them in our future. To avoid the wastage of resources they should be properly used and should be conserved as much as possible.
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