Answer:
The options are
A. There will be less soil and dust in the air as construction increases.
B. The atmosphere will improve as more people move to large cities.
C. Making major changes to the atmosphere can be a costly process.
D. It is more important to protect land and water resources than the atmosphere.
The answer is C. Making major changes to the atmosphere can be a costly process.
Step-by-step explanation:
Making major changes to the atmosphere to the atmosphere to help protect Earth's resources is costly because no one knows the effects of what the changes will have when effected. Another angle is effecting the changes will be a very expensive one as the atmosphere is very large and will be difficult having it happen.
This however validates making major changes to the atmosphere can be a costly process as the right option.