Answer:The population was becoming too old
Explanation:
A. Burning fossil fuels
C. establishing state parks
E. using renewable energy sources
<span>montana is engaging in Critical thinking.
Critical thinking refers to the process of using objective/scientific reasoning in order to create a decision/ judgment.
In order to do this, we need to refuse to take all statement that describes an occurrence on face value and consider all the factors that might influence that occurrence in order to find the truth.
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