I think it is 8 and 9th centuries. I hope it is correct.
Some of the instruments used by meteorologists to study weather are:
1. Thermometer - this instrument measures the temperature of the air
2. Barometer - measures atmospheric pressure
3. Anemometer - measures the speed of the wind. Some anemometers also measure the direction of the wind.
4. Hygrometer - measures relative humidity (the amount of moisture in the air).
Answer:
yes
Explanation:
Andrew Carnegie, (a Scottish emigrant), bought the 2 year old Homestead Steel Works in 1883, and integrated it into his Carnegie Steel Company. For many years, the Homestead Works was the largest steel mill in the world and the most productive of the Mon Valley's many mills.
Answer:
Popular Soverignty
Explanation:
The Kansas-Nebraska Act was an 1854 bill that mandated “popular sovereignty”–allowing settlers of a territory to decide whether slavery would be allowed within a new state’s borders
Tension increased in 1914 due to arms race but war was avoided because of the great powers stood together to make peace.
