I believe it is delicate in texture. Hope this helps! Sorry if I got it wrong...
Which are scarce in some areas modifies animals.
are protected by state regulation modifies areas.
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It's pretty simple. You only need to focus on the reasons why people are homeless. Do they have good education? do they get better job? Or do they find ways inorder not to be homeless? Questions like that will help you determine why? and what can be the solutions inorder for them not to be homeless.