5. Why is it helpful to increase soil carbon and build soil organic matter?

Increasing the amount of carbon stored in the soil, you offset the amount of CO2 in the atmosphere and also improve the health of soil. Increasing organic matter in soil increases the amount of carbon in soil, and wide range of soil health benefits result.

Explanation:

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they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.