<span>The region of Poland has suffered from the few limits of European states with respect to the international politics of the 20th century. The variations of the borders of Poland is due to the absence of natural barriers in the east-west. The extension of the border is the cause of constant changes in stability that have shaken the country and the inhabitants.</span>
Secondary pollutants are more harmful than primary pollutants. False
<h3>Primary and secondary pollutants</h3>
Primary pollutants are pollutants released directly to the environment from their sources.
Secondary pollutants are formed from the reactions of primary pollutants with other substances in the environment.
Both primary and secondary pollutants can equally be harmful to living organisms. What distinguishes their harmful level would be the nature of the substance.
Thus, saying that secondary pollutants are more harmful than primary pollutants is not completely true.
More on pollutants can be found here: brainly.com/question/23857736
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It depends on if you have your required amount of credits for mathematics. If you do, then you don’t have to take any more mathematics classes, but if you don’t then you’ll still have to take an alternative mathematics class/es in order to graduate. Classes that are dropped will appear on your transcript as so
Mixture as the molecules are not bound to one another.
Answer:
Thymine
Explanation:
Adenine is a Purines together with Guanine .
Purines always pair with Pyrimidines ; which are cyosine and Thymine.
This is a complementary base pairing that hold the two strands of DNA bases together by weak hydrogen bonds for flexibility and easily unwind during replication
Purines are larger in size beaxuae they have 2 ring structures while Pyrimidines aee smaller because of one ring structure.
Therefore two purines (Adenine and Guanine can not pair together;
It must be a Purines -Pyrimidines pairs.
Therefore Adenine must pair with Thymine and cyosine with Guanine
In RNA, Thymine are replaced with URACIL as Pyrimidines.
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