Answer:
Scholars writing about historical events, people, objects, or ideas produce secondary sources because they help explain new or different positions and ideas about primary sources. These secondary sources generally scholarly books, including textbooks, articles, encyclopedias, and anthologies.
Explanation:
 
        
             
        
        
        
<span>Settlement houses made a
notable contribution to Progressive Era reform primarily by lobbying municipal
authorities for better city services in slum neighborhoods. The progressive era
movement’s leaders sought for laws that could make the settlements more safe
and hygienic through lobbying the authorities to solve these problems. </span>
 
        
             
        
        
        
Answer:
A,B,D are the correct answer good luck everyone 
 
        
             
        
        
        
On a quiet spring morning, a resounding “Slap!” reverberates through the air above a remote stream leading to Lake Yellowstone. Over much of the past century, it has been a rarely heard noise in the soundscape that is Yellowstone National Park, but today is growing more common-the sound of a beaver slapping its tail on the water as a warning to other beavers.
When the grey wolf was reintroduced into the Greater Yellowstone Ecosystem in 1995, there was only one beaver colony in the park, said Doug Smith, a wildlife biologist in charge of the Yellowstone Wolf Project.
Today, the park is home to nine beaver colonies, with the promise of more to come, as the reintroduction of wolves continues to astonish biologists with a ripple of direct and indirect consequences throughout the ecosystem.
A flourishing beaver population is just one of those consequences, said Smith.
        
             
        
        
        
<span>D is the correct answer. The Federal Art Project ran from 1935 - 1943 and helped fund visual arts in the US. It was not seen as for culture or a hobby, but for employing artists and other people working in visual media.</span>