I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.
Answer:
The muslims believe a prophet is a messenger because he say the ALLAH words and tried to convainct that teir is just one god and not 2
Explanation:
Answer:
Radiometric dating
Explanation: Radiometric dating is a precise method of determining the age of archeological artifacts and rocks, it usually makes use of certain radio isotopes of Uranium-235,Rubidiun-87 etc.
Radiometric dating which is also known as radioactive dating is carried out by comparing the naturally occurring radioactive materials of the artifact or rock under study to product of its decay process.
Craters dating is a random process so its reliability can not be guaranteed.
