Slate is much more commonly found in wet areas, especially around rivers in the United States, so it wouldn't be very available to Natives who were more inland.
What is this about can you tell me what it is so I can answer
"(3) The federal government must protect the <span>nation’s lands from exploitation" sums up how Roosevelt felt about natural resources. He was the first to mak national parks. </span>
It would be D. It placed a limit on Western expansion in North America in order to end struggles with the Native Americans.
