Answer:The pressure of Mercury = 588,600Pa
Explanation:
The pressure of Mercury is given as
p=h x ρ x g
Where h =height= 20 dm
changing to meters
10 decimeters (dm) =1 meter
20dm =2 meter, 2m
ρ is the density =30000-kg/m³
g , gravity = 9.81-m/s²
Pressure = 2.0m x 30000-kg/m³ x 9.81-m/s²
588,600 kg.m/ s²/m² =588,600 N/m²
The pressure of Mercury=588,600Pa
Answer:
Fast changes occur through the actions of Earthquakes, volcanoes, landslides, etc. over short periods of time
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The only one i can see caused primarily by human activities would be A. Air Pollution.
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Answer:
Yes.
Explanation:
The duration of hours of the day is longer during the summer and shorter during the winter and this influences the temperature in these two seasons. As the day is longer in the summer, it means that the hemisphere that this summer has more exposure to the sun and therefore has higher temperatures. The opposite happens in the winter, as there is less exposure to the sun, due to the shorter day, which can help in decreasing the time.
Answer:
The purpose of both the Truman Doctrine and Marshall Plan were to curb the spread of Communism.
Explanation:
The Truman Doctrine was an American foreign policy which stated purpose was to contain Soviet geopolitical expansion during the cold war.
The Marshall Plan was a Economic recovery plan to help recover Western Europe's devastated economy after WW2, and was only available to non-communist nations