Answer:
Mexico City government has continued to strengthen vehicular emissions control with advanced technologies and surveillance programs, including Green inspectors
Explanation:
They help by uncovering secrets about the past because inventors or current society can build off those ideas or past activities by developing new cultures and new laws later on in the future that can become more or more reliable than what it was in the past.
I believe the answer is: <span>longitudinal; cross-sectional
Longitudinal study is initiated if the researchers want to collect long term data from the subject as over time (as they grow up).
Cross-sectional study on the other hand is initiated if the researchers want to know whether a certain things only affect a specific population.
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Answer:
Judiciary Act of 1789
Explanation:
its my best guess and yes it is