Which of the following words best completes the sentence below? To means to update something in order to take advantage of new ideas or new technology.

The rocky mountain system stretching from canada to new mexico is a string of mountains running along the wester united states. what factors would mostly cause this arrangement of mountains? intense pressure undemeath a tectonie plate that could not breakthrough the rock subduction of a tectonic plate, which pushed up a neighboring plate into mountains two plates located at a diverging boundary with a third plate rising between them two plates that melted into molten rock, which later cooled into the shape of mountains

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

Why does sweden and norway have steep roofs