Most of the weathering of cleopatra’s needle is caused by
question 16 options:
hydrolysis
chemical weathering
oxidation
frost wedging

chemical weathering

Explanation:

The Cleopatra's Needle is a monument in New York. Its origin actually lies in Egypt, and it has been in Egypt for over 3,000 years, but it has been sent to New York as a gift for the United States by the Egyptians. While the monument already was partially damaged by weathering in the desert in Egypt, the weathering increased significantly ones the monument was brought in New York. The chemical weathering in New York has been much stronger, with constant acid rains and freeze-thaw cycles doing a lot of damage to the red granite by which the monument is made off. A plan has been made to preserve it, as its surface has been totally damaged, with the hieroglyphs nowhere to be found.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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