Which three of these challenges did humans face as they settled into agricultural life? (select all the correct answers.)a. threat of insects and rodents that could destroy a harvest? b. protecting land from intruders and maintaining property? c. finding ways to cook meat to make it tender and nutritious? d. famines caused by unfavorable weather, or other factors? e. hunting large animals without causing them to go extinct?

A, D and E

Explanation:

A. Threats of insects and rodents that could destroy a harvest.

    Agricultural land and farms invites insects and rodents to their fields.   Farming land are a source of food for the insects and the rodents.

D. Famines caused by unfavorable weather or other factors.

  If any unfavorable weather conditions prevails, it is the most worrying challenges that people involve in agriculture face. Because of these all the crops are destroyed and the people are left with nothing to survive since agriculture is their source of livelihood.

E. Hunting large animals without causing them to go extinct.

    Many farmlands can also invite large animals such as fox, tigers or elephants and reptiles like snakes since they sometimes come to the agricultural lands in search of food. The farmers have to hunt down and kill these animals and reptiles in order to save their crops or even to save themselves. So the farmers have to be very careful so that these animals and reptiles do not go extinct.

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe

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