Slate, Skarn, Marble, and Quartzite are Metamorphic Rocks.
BUT SKARN is the type of rock that does not belong in the same category as the others.
Slate metamorphosed from mudstone. Marble metamorphosed from limestone. Quartzite metamorphosed from sandstone. All these rocks retain their solid forms.
Skarn<span> is a metasomatic rock composed of calc-silicate minerals.
Skarn is formed at the contact zone between carbonate rocks and silicic
magma. Skarn is often rich in hydrothermal ore minerals.</span> Skarn as a metamorphic rock is dissolved under metasomatic process and hardens back into a rock.
Answer: higher concentration to lower concentration
Explanation:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical chemical energy that can later be released to fuel the organisms activities.
Carbon skeletons may vary in length, shape, number and location of double bonds and other elements covalently bonded to available sites.
A carbon atom contains four valence electrons thus, exhibiting a strong tendency to make covalent bonds with other atoms so as to complete its octet. Covalent bonds join carbon atoms together in long chains that create the skeletal framework for organic molecules.
A carbon atom could be linked to as many as four additional carbon atoms in an organic compound. Carbon atoms can also quickly form double bonds (where four electrons are shared among two atoms) and triple bonds (where six electrons are shared).
This variation in carbon skeletons contributes to the diversity and complexity of organic molecules.
To learn more about covalent bonds here
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