Answer:
5,550
Explanation:
it was 3500 BCE.
which is 5,500 years ago.
Oceanic Crust
Continental Crust
Oceanic crust is denser than continental, this is why continents are at higher elevation than oceans.
I think it is the 3rd answer choice.
The farming method that is used in dry or desert areas is the drip irrigation.
<h3>What is Drip irrigation?</h3>
Drip irrigation is defined as a method that is used in water irrigation, in which water passes through a filter and into customized drip pipes with spaced emitters.
A particular slow-release system deals that the water straight into the soil near the roots through the emitters. Drip irrigation is a farming technique that is mainly used in dry or desert locations.
Therefore, dip irrigation method is in dry or desert areas.
Learn more about the drip irrigation, refer to:
brainly.com/question/18599102
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