Answer:
B tectonic plates
Explanation:
I choose this because when the plates move that is how mountains, valleys and volcanoes are made. It is because of the shift.
Answer:
Negative feedback
Explanation:
I just weighed out the positives and negatives in my head and there were more negatives
Igneous rocks are defined as formations made from solidified lava or magma.
When lava or hot Magma reaches the surface of the earth or a water body it quickly cools down and changes it's from from a hot liquid to a solid rock.
The chemical composition of Igenous rocks can vary depending on their location, cooling time etc.
However, most Igenous rocks contain some or all of the following minerals:
1. Quartz
2. Micas
3. Amphiboles
4. Olivines
5. Pyroxenes
6. Feldspathoids
7. Feldspars
