Answer:
a.
they did not co-evolve with the natural species and lack natural controls, like predators
Explanation:
Carbon dioxide : the air component in soil provides the carbon dioxide needed for photosynthesis
The statement about ADHD that is true is: "ADHD has no clear physical symptoms that can be detected via an x-ray or blood test"
<h3>What is ADHD?</h3>
This is an acronym for a kind of mental disorder that is called Attention Deficit Hyperactivity Disorder (ADHD).
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental psychiatric condition.
It is characterized by challenges concentration, excessive activity, or difficulty restraining behavior that is inappropriate for a man's age.
Learn more about ADHD at;
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President Reagan’s new approach to the Cold War reveal about his foreign-policy strategy is:
- <u>C. He wanted to work for peace from a position of military strength. </u>
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The Cold War was a period in history between the United States and Russia (then known as the Soviet Union) where there were conflicts which led to trade embargoes, diplomatic issues and threats of war.
The two leaders of America and the Soviet Union respectively, President Reagan and Comrade Gorbachev were engaged in war of words and President Reagan tried to make peace and evoid conflict, even though the United States were stronger from a military perspective
Therefore, the correct answer is option C
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