Answer:
Silicate-Oxygen tetrahedro
Explanation:
Silicate-Oxygen tetrahedro are the most abundant and basic structure of common minerals.
These are silicate minerals which formed to silicate rock forming mineral. These constitute about 90% of earth crust. Silica SiO2 consider as most common mineral on the surface of earth also known as Quartz. The the most andundant element in the earth crust is oxygen, mainly found in combine form.
X has an elevation of 1600m
Y has an elevation of 1240m
Difference between the two elevations: 1600-1240=360m
The best and most correct answer among the choices provided by your question is the third choice.
The oceanic trenches<span> are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the </span>ocean<span> floor.</span>
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