कोरोनाकाल में सकारात्मक सोच का होना आवश्यक (essay ) write your own vie points plz
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Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.
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sorry don't know the answer
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yss dear kyu sahi nahi hai
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