Which mountain chain extends from the united states into canada?

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

What is meant by the term relative location?

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.