What is the key difference between direct and indirect techniques of influence?

a phrase from a poem by ralph waldo emerson about the battle of lexington and concord. emerson's words read, “here once the embattled farmers stood / and fired the shot heard round the world.”

well not the inner core.. its made entirely of lava. the crust is obviosly not it. and the outer core is made of nickel so your answer would be a the mantle

hope this