Identify the biologic sedimentary rock consisted mainly of plant remains.Group of answer choicesbiotiteconglomeratecoalgranite

1. Identify the Options

We have the following options:

1. Biotite
2. Conglomerate
3. Coal
4. Granite

2. Analyze the Options

• Biotite: This is a common phyllosilicate mineral within the mica group and is not a sedimentary rock.
• Conglomerate: This is a coarse-grained sedimentary rock composed of rounded clasts; it generally does not consist mainly of plant remains.
• Coal: This is a type of sedimentary rock that forms from the accumulation and compaction of plant remains, predominantly in swamp-like conditions.
• Granite: This is an igneous rock composed mainly of quartz and feldspar, not sedimentary.

3. Conclusion

The only option that is primarily composed of plant remains is Coal.

Final Answer

Coal is the biologic sedimentary rock that consists mainly of plant remains.