Are associated to explosive eruptions, which are characterized by pyroclastic flows and ash plumes that extend into the stratosphere.

Click the item in the left column. use the plus sign to move it up or the minus sign to move it down until it matches the correct entry in the right column. lock your answer in place by clicking the square beside the item. (a checkmark means it is locked.) amazon basin a atacama desert b andes mountains c lake titicaca d peru e patagonia f brazil g chile h suriname

In north america, most winter storms form when cold, dry air from interacts with warm, moist air from

Why does sweden and norway have steep roofs