Which sentence uses complicate correctly

These two elements threaten ecosystem biodiversity.

Read the excerpt from "mending wall." we keep the wall between us as we go. to each the boulders that have fallen to each. and some are loaves and some so nearly balls we have to use a spell to make them balance: "stay where you are until our backs are turned! " we wear our fingers rough with handling them. oh, just another kind of out-door game, one on a side. it comes to little more: there where it is we do not need the wall: he is all pine and i am apple orchard. what does the line “and some are loaves and some so nearly balls” refer to?

Passage 1passage 2 read the passage from “the caged bird.” a free bird leaps on the back of the wind and floats downstream till the current ends and dips his wing in the orange sun rays and dares to claim the sky which phrases representing the idea of freedom connect the poem to the autobiography? “leaps on the back of the wind” connects to “ran down the hill.” “and floats downstream” connects to “and into the road.” “dips his wing in the orange sun” connects to “the good sense.” “and dares to claim the sky” connects to “to stop running.” mark this and return