What is the topography of the shield like

Q4. which are the major components of the environment?

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

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?