Click and drag answers to change the order, or select using ↹ Tab then move by pressing Space and the ↑ ↓ arrows on your keyboard.
a steep-sided valley formed by plates pulling apart
has gentle slopes and erupts runny, basaltic lava
measures the energy released by an earthquake
To pick up a draggable item, press the space bar.
While dragging, use the arrow keys to move the item.
Press space again to drop the item in its new position, or press escape to cancel.