The lands refer to the overall retheming/adding and shops, facades, minor attractions, etc.
To learn more about each attraction, retheme, etc., visit the Disney California Adventure Project Tracker X

Buena Vista Street 10
Red Car Trolleys 10
Hollywoodland 10
The Little Mermaid: Ariel's Adventure
Goofy's Sky School 10
Paradise Pier 10
Paradise Garden 10
World of Color 10
Toy Story Midway Mania! 10
Cars Land 10
Radiator Springs Racers 10

Hurt or Heal works by adding a point to one item on the list and subtracting a point from another.

Buena Vista Street 10
Red Car Trolleys 10
Hollywoodland 10
The Little Mermaid: Ariel's Adventure
Goofy's Sky School 9 [-]
Paradise Pier 10
Paradise Garden 10
World of Color 10
Toy Story Midway Mania! 10
Cars Land 11 [+]
Radiator Springs Racers 10