THIS QUESTION IS RELATED TO THE CHAPTER RESOURCES. In my textbook they say that "Materials are converted into resources by value addition" wdym by "value addition"?

Value addition is the extra feature(s) a company adds to its products and services before offering them to customers and clients. Adding value to a company's products or services can help them to attract more potential clients, which in turn boosts revenue.

i am a little confused myself with what goes with the letters and what goes with the numbers but ill do my best to you

the cordillera states and grand canyon are along the southwest u.s. and northern mexican pacific.

the great plains and southwest desert are also the prairie and home to many earthquakes too .

the coastal plains have poor soil and many factories started in the south.

is this what u needed? if not i can see what i can do