Answer:
<em>Phillipines </em>was the first country in the region to be claimed by European colonizers.
Explanation:
Colonised by the Portuguese and Spanish people.
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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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A drainage basin is a region of land where water from rain or snowmelt flows into an ocean, lake, river, or other body of water.
