The people of Egypt, Mesopotamia, and the Indus Valley all farmed. What did they depend on for successful farming? O A) hybrid seeds O B) river flooding O C) manure and peat moss D) slave labor​

Option B, river flooding

Explanation:

Egypt, Mesopotamia, and the Indus Valley are located along a river and hence they provide an advantage to farming. River bodies provide large amount of water for irrigating farmlands due to which it has been possible for people living in Egypt, Mesopotamia, and the Indus Valley regions to depend on farming as major source of income

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.

those sounds of the natural world are bioacoustics, and they're more than a false-color spectrogram of data from the musiamunat conservation area.