Answer:
The Fall of the Roman Empire was important because..
Explanation:
it was the end of an era since the Romans conqured the whole medditeranian sea and all the countries that were in it started a dark age also the fall came along with a population decline in western europe for a brief period.
Answer:
The total mass of water in on Earth's surface is 
.
Explanation:
Total planetary surface area = T = 
Total land area of planet = L = 
Total water area of planet = W
T = L + W
Volume = Area × Depth
Volume of water on earth = V
V= 
Total mass of total water on the earth = M
Density of the water,D = 1 g/mL = 0.001 kg/0.001 L=1 kg/L
1 g - 0.001 kg
1 mL = 0.001 L
The total mass of water in on Earth's surface is .
Answer: THE MIDDLE OF THE EARTH IS KNOWN AS THE CORE.
Explanation: The core can be defined as the middle of the earth. It is composed mostly of iron, some nickel, and about 10- 15 percent of a less dense material, probably silicon, oxygen, or sulfur.
The temperature at the inner core's surface is estimated to be approximately 5700 K (5430 °C or 9806 °F), which is about the temperature at the surface of the Sun.
Fjords, or glacial valleys.
