Answer:When scientists focus on climate from before the past 100-150 years, they use records from physical, chemical and biological materials preserved within the geologic record. Organisms (such as diatoms, forams and coral) can serve as useful climate proxies. Other proxies include ice cores, tree rings, and sediment cores.
Explanation:
i would say B. Railroads resulted in increased settlement and trade, because of the ability to move to different places and travel. correct me if im wrong.
Answer:
It gave the egyptians all their water supply
They used the water from the Nile to water their crops and travel
Explanation:
The Nile River has been an important source of food, transportation, and water for the continent of Africa for thousands of years. Without the rich soil and clean waters that the river brought to the dry desert, Ancient Egypt would not have survived, and this extremely important civilization would have never happened.
Answer:
The correct option here is D) 74.3% and 2.4% .
Explanation:
Formula for calculating the labor force participation rate is -
Total number of people in labor force / Total number of people above age 25
Here number of people in labor force = employed + unemployed people
= $52.1 million + $1.3 million
= $53.4 million
labor force participation rate = $53.4 million / $71.9 million
= .743 x 100 ( multiplying by 100 to make it in percentage )
= 74.3%
Formula for unemployment rate =
Total number of people unemployed / total number of people in labor force
= $1.3 million / $53.4 million
= .24 x 100 (multiplying by 100 to make it in 100 )
= 2.4%
European people value clean air over industry, which is what makes them fall behind america in jobs and growth