Society allocates its scarce resources to various jobs. these scarce resources include a. people. b. machines. c. land. d. all of the above are correct.

d. All of the above are correct.

Explanation:

According to my research on societal development, I can say that based on the information provided within the question the scarce resources would include people, machines, and land. Scarce resources are any resource that has a limited quantity. Therefore all of the above would be considered scarce because a society only has a limited amount of people machines and land for certain jobs.

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early settlements on the subcontinent. both the indus and the ganges rivers carried rich silt from the mountains to the plains. when the rivers flooded, the silt spread over the plains and made the soil in the river valleys fertile for farming.

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