Because they both had to cross a border to get here........you may have to be more specific on the question for me to answer it
Answer:
Most of the particles spewed from volcanoes cool the planet by shading incoming solar radiation. The cooling effect can last for months to years depending on the characteristics of the eruption. Volcanoes have also caused global warming over millions of years during times in Earth’s history when extreme amounts of volcanism occurred, releasing greenhouse gases into the atmosphere.
Explanation:
Even though volcanoes are in specific places on Earth, their effects can be more widely distributed as gases, dust, and ash get into the atmosphere. Because of atmospheric circulation patterns, eruptions in the tropics can have an effect on the climate in both hemispheres while eruptions at mid or high latitudes only have impact the hemisphere they are within.
To provide economic security
Answer:
What was the most important factor in making Mesopotamia's farmland fertile?
Floods on the Tigris and Euphrates rivers brought silt to the land. The fertile silt made the land ideal for farming.
Explanation:
In a A) command economy the government controls all aspects of the economy and makes all decisions about what goods will be produced, who will produce them, and how they will be produced. This is the opposite of a market economy in which the market determines these elements of the economy.