• Brainly User
Earlier our grand parents were very close to nature . They used to love nature very much so they used to care for it .They were not throwing their garbage in water bodies . They were not making it dirty how we make it . 
In earlier days the number of cars and industries was very less .Our grand parents used to ride cycles in spite of cars. And they used to work with their hand not by machines in this way there was very less air pollution
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