Ethnic conflicts has been a contemporary concern
The Amazon River is the world's longest river, measuring 6 992 km.
<span>C) ships could then take advantage of the currents to speed up travel </span>
Oxygen causes the chemical weathering of a rock containing iron to become soft and crumbly and reddish brown in color.
<h3>What is the role of oxygen in rock weathering?</h3>
Oxygen is said to be a very reactive element and this often makes it reacts with rocks and this often leads to rust formation and others.
Therefore, Oxygen causes the chemical weathering of a rock containing iron to become soft and crumbly and reddish brown in color.
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