Answer:
The central idea that the author wants to convey in the text 'Collecting Rocks' is inform her audience of rock collectors on how to group rocks.
Explanation:
'Collecting Rocks' is a passage written by Rachel M. Barker. The text is written to inform the audience of the author, especially rock collectors, on how they should group rocks.
<u>The author begins with making her aware of the classification of rocks by Geologists into three groups, that is, igneous, sedimentary, and metamorphic. Then author goes on to explain the features of each rock to help the rock collectors know which type of rocks are they collecting or grouping</u>.
The central idea of a text can be identified by the title and it is also conveyed in the inroductory passage of the text.
In 'Collecting Rocks', the central idea is to inform the readers on how to collect rocks or how to group them according to its classification.
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