Answer:
The balance of oxygen and carbondioxide is maintained in the atmosphere by the oxygen released by plants during photosynthesis and carbondioxide released by human,animals etc. in the atmosphere. ... The balance of oxygen and carbondioxide is made due to respreration and photosinthesis
Explanation:
Answer:
The north used the rising number of immigrants to staff the industrial economy (factory jobs, warehouse jobs, etc...) the south felt no need to employ immigrants on their plantations because the invention of the cotton mill had made slavery a more economical option.
Explanation:
Any group looking to lower costs by encouraging competition would likely support free trade agreements. Free trade agreements encourage competition in markets.
The Standard Oil company.