There are four main types of unemployment in an economy—frictional, structural, cyclical, and seasonal—and each has a different cause. Frictional unemployment. Frictional unemployment is caused by temporary transitions in workers' lives, such as when a worker moves to a new city and has to find a new job.
John Muir was associated with the issue of conservation.
Answer: Option D
<u>Explanation:
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John Muir is regarded as one of the greatest environmental philosophers the world has ever had. His stand for the conversation of the environment was remarkable and is still taken reference from by the new age conservationists.
The idea of having protected national parks was first put forward by John Muir. For that reason alone, he is called the father of national parks.
Enslave afican workers added to the econnomic success of South Colonies by own more slave and money!!!!!!!!
