GradeFor her hard work,,Or an point... What is the answer choice?
Answer:
Before the Civil War, Philadelphia was a center of shipyards and manufacturing.
Explanation:
At the beginning of the 19th century, Philadelphia experienced an important economic growth thanks to its agricultural and mining wealth; the construction of routes, canals and railroads allowed the city to maintain its privileged position in the industrial revolution. The textile industry, the confection, the metallurgy, the manufacture of paper and of railway material, the naval construction in the shipyards and the agricultural industry were the main industries of the 19th century. Philadelphia was at the same time a financial center of prime importance. During the Civil War, the factories of the city supplied the armies of the Union.
Answer:
с. 60-80% of your maximum heart rate
Explanation:
The "target heart rate" is very important when you want to know how to do your exercise properly <em>without straining your body</em> <em>or relaxing too much. </em>In order to do this, you have to get your<em> "maximum heart rate"</em> first by subtracting your age from 220. The difference will be multiplied by 60% to 85%, depending on the exertion level that you want.
For example, your age is<em> 20</em>. You have to<em> subtract 20 from 220 </em>and that will give you a maximum heart rate of <em>200 beats per minute (bpm).</em> If you want a 60% exertion level, your target heart rate is 120 bpm (200 x 60%).
Arteriosclerosis is a disease where the arterial walls become thickened, lose elasticity, and can restrict blood flow. It is also called hardening of the arteries and usually occurs in older adults.
