Which of Earth's layers are brittle (rigid and breakable)?

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !

Which countries were controlled by france at the beginning of world war i? hint: use the map in the lesson to you answer this question. algeria burma cambodia indonesia vietnam