Answer: I Beleive lighter layers are on top but I’m not sure
Explanation:
Idk if your asking what the oldest political party is but I'm assuming you are so,
Federalist is the oldest party in the US. They eventually become the democrats.
The north end of Earth's axis is tilted toward the sun from March 21 until
September 21 ... Spring and Summer in the northern hemisphere, which
includes North America.
Islam first originated in Mecca in the 7th century.
Answer:
It happens because the consuming is higher than the water drop rate, or even because there are too many people in a zone where there is not enough fresh water.