Karsten is researching a recent, controversial scientific issue. Which of these sources is a reliable source for Karsten to use for unbiased scientific information? Group of answer choices.
1.) a scientific journal with peer-reviewed articles
2.) an informative pamphlet mailed to your home by a politician or lobby group
3.) a personal website or blog
4.) an encyclopedia article in a respected, older encyclopedia

B

Explanation:

Idk

4

Explanation:

Older websites usually are more respectful

and not bias.

answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.