Ineed to match these and i dont get it

How does nitrogen oxides are produced and their air environment impact

Why is it important that salads have crunch factors, color, and appropriate dressings? a. the salad will appeal to customers with varied tastes. b. it is easy to get away with poor quality ingredients. c. it is a good way to use up leftovers. d. it will give the customer something to enjoy in each bite. e. it use more products.

This migraine wont go away and i dont feel safe taking any more medicine for the next few hours