Which is a correct statement about weather and climate?

C. Climate maps use years of data collected over time. 

To explain this answer, we can simply explain why the other statements are false. Keep in mind the difference between climate and weather:

Weather =  day to day conditions within any given area

Climate = an "average" of these daily weather conditions over long periods of time

With that in mind, go over the answer choices:

A. Climate maps change everyday

We said that climate is an average of weather conditions over long periods of time, therefore they cannot change on a day to day basis. 

B. Weather maps cover long periods of time. 

Weather maps, based on the definition of weather itself, are day to day occurances, and can change often. For example, it can rain one day, but be completely sunny the next. It is difficult to predict weather far in advance. There, it cannot cover long periods of time. 

C. Climate maps use years of data collect over time

This is true. Climate is an average of weather patterns over long periods of time. 

D. Weather maps do not contain daily temperature ranges

Actually, they do. Again, weather is on a day to day basis, so therefore, they must contain daily temperature ranges.

Explanation:

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according to the report, the government has imposed restrictions on freedom of speech, freedom of the press, freedom of assembly, and freedom of association. the official media remained tightly controlled by government censorship and obstruction. restrictions on the freedom to assemble remain a problem in vietnam.

explanation:

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.