What should be added to 15x +13xy+5what should be added to 15 X + 13 X y + 5 y squared to obtain minus 3 X square + 5 + 6 b square
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Short answer type questions ( in 20-30 words): 1. What is land use? List the factors which control the utilisation of land. 2. Name the two main climatic factors responsible for soil formation. 3. Write two reasons for land degradation. 4. How is land an important resource for us? 5. What are soil horizons? Explain the various soil horizons present in a soil profile. 6. Discuss the agricultural practices that can be adopted for soil conversation. 7. What are the factors responsible for the shortage of fresh water? 8. Suggest few methods of water conservation.
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