What type of rock would you form in this coral reef? 
Definitions:
Subtractive Colours
Colors produced by the removal of light wavelengths, commonly seen in pigment mixing.
Top-Down
An approach or process that starts from the general to the specific, often used in information processing or organizational decision-making.
Bottom-Up
An approach or process that begins with specific details or elements and builds up to a comprehensive picture or understanding.
Feature Analysis
The process of breaking down and examining the elements or structure of information, often used in cognitive psychology to understand how people recognize patterns and objects.
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