Based on the modeling of water-level change, the ranking of the states will be Texas, Kansas, Colorado, Nebraska, and New Mexico.
The High Plains Aquifer system is made up of tertiary sedimentary rock, gravel, and sandstone that are eroded from the Rocky mountain.
It should be noted that the High Plains Aquifer provides nearly all the water that is used for industrial, agricultural, and residential uses. Based on the modeling of water-level change, the ranking of the states will be Texas, Kansas, Colorado, Nebraska, and New Mexico. While Texas has the largest amount of groundwater decline, New Mexico has the lowest groundwater decline.
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Answer:
Correct answer is a) city-states, medieval states, nation-states.
Explanation:
First city-states emerged on the soil of Mesopotamia. Those were Sumerian city-states. Medieval states emerged after the fall off Roman Empire and nation-states were created afterwards. Most of them were created after Revolutions in 18th and 19th Century. That is why A is correct.
B is not correct because this was a development in newer period.
C and D is not correct because city-states emerged before nation-states and medieval states.
The principle of uniformitarianism states that geologic processes that we observe today occurred in the same way in the past. The correct option among all the options that are given in the question is the last option. Incidents such as floods, hurricanes and huge storms have not occurred only in the present time, but it has been occurring in the past as well.
The answer to the question is 3/4
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