Answer: No unethical experiment can ever have a positive effect on society.
Explanation:
Poland is a country in the continent of Europe.
Answer: Scientists know that the Colorado River carved Grand Canyon. ... The age of the river falls between the rocks determined to be older than the river and those determined to be younger. Through this method, scientists have estimated an age for the river, and thus the canyon through which it flows, of 5-6 million years.
Explanation:
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