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Category: Exact sciences

Proportions

The world population currently stands at approximately 7,768,882,000 people. Every day, about 400,000 people are born and about 170,000 die. Since the beginning of the

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Viruses

In recent weeks, the news has dealt mainly with the novel Corona virus. As time goes on, the war against the virus intensifies, its presence

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Acid Rain

Acid rain, is a rain that is below pH 5.6 which is the acidity of normal rain. The rainwater dissolves CO2 in the atmosphere, making

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Snow-forming bacteria

Everyone knows that when we are wounded, it is best to wash the wound with soap and water and apply antiseptic ointment. We do this

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