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Answer:
number 3
Explanation:
savanna is tropical grassland with widely scattered trees or clumps of trees. A Desert is a biomein which the lack of precipitation limits plants growth; deserts are found in both temperate and tropical regions.
The name that given is Muckrakers
The term was popularly coined during the development of early progressive era in the period of 1890s - 1920s.
Back then, the government and the establishments were known to be really corrupt and many Muckrakers started to do investigative journalism to find out the truth about their practice.