Question

17 us map (shaded state) north dakota
wyoming
ohio
18 us map (shaded state) alaska
new hampshire
minnesota
19 us map (shaded state) iowa
illinois
west virginia
20 us map (shaded state) missouri
new york

Explanation:

Question 17:

The black - shaded state on the map for question 17 is in the upper - central part of the US. Among North Dakota, Wyoming, and Ohio, North Dakota is located in the upper - central region which matches the position of the shaded state. Wyoming is more to the west and Ohio is in the eastern part of the central US.

The black - shaded state on the map for question 18 is in the upper - midwest region of the US. Among Alaska, New Hampshire, and Minnesota, Minnesota is located in the upper - midwest which matches the position of the shaded state. Alaska is not in the contiguous US and New Hampshire is in the northeastern US.

The black - shaded state on the map for question 19 is in the mid - western region of the US. Among Iowa, Illinois, and West Virginia, Iowa is located in the mid - west which matches the position of the shaded state. Illinois is more to the east in the mid - west and West Virginia is in the eastern US.

Answer:

North Dakota

Question 18: