Answer:
Explanation:
Geologists defines a mineral as a naturally occuring solid, which is inorganic with a uniquely ordered structure and a definite chemical composition.
Gold nugget based on this definition is mineral. It is a solid and it occurs naturally. It is made up of gold atoms.
Seawater is not a mineral. It is a liquid and does not have definite composition.
Quartz is a mineral with a definite composition. It occurs naturally and it is a solid.
Cubic zirconia is not a mineral. It is not naturally occuring. It is man made.
Obsidian is not a mineral. It is a mineraloid due to its form. It is glass-like in nature. In obsidian, the crystals do not have time to form an ordered structure.
Ruby is a silicate mineral. It is naturally occuring and fits the description of minerals.
Glacial ice is a mineral. It is solid, inorganic, naturally occuring, and has a definite composition.
Amber is an organic compound and not a mineral.
The change in fossils at the K-T sediment layer suggests that in addition to the dinosaurs,about three-quarters also went extinct.
<h3>What is KT layer?</h3>
The K-T boundary layer serve as the layer that consists carbonaceous shale as well as the boundary claystone and the impact layer.
The fossil in this layer can used to study about extinction of animals such as the information about dinosaurs.
Learn more about KT layer at;
brainly.com/question/1622425
Answer:
This process is known as thermohaline circulation. In the Earth's polar regions ocean water gets very cold, forming sea ice. As a consequence, the surrounding seawater gets saltier, because when sea ice forms, the salt is left behind. As the seawater gets saltier, its density increases, and it starts to sink
In it is states (in random bible) "And God went on to form the man out of dust from the ground and to blow into his nostrils the breath of life, and the man became a living person."
According to this, the substance is dust
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