The correct answer is: Layer 1, layer 2, and layer 4 in all three regions.
The index fossils are fossils that are commonly used for identifying a geological period of time, and these fossils are also very wide spread, as well as having a rapid evolutionary trends.
By this picture, we can easily see that even though we have rock strata from different regions, the same layers contain the same fossil, and it is a fossil that also is rapidly evolving so has a minor change in each layer.
These products are designed to coat the gastric tissues and protect it from the acidity of the stomach or gastric secretions.
<h3>What are Pepto Bismol and Milk of Magnesia?</h3>
Pepto Bismol is made up of mainly Bismuth subsalicylate which has the ability to coat the mucosal surface of the gastric tissues.
Milk of Magnesia contains antacid that helps reduce the acidity of the stomach.
Therefore Pepto Bismol and Milk of Magnesia can be taken when people have an upset stomach.
Learn more about gastric tissues here:
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Water molecules consist of 2 Hydrogen and 1 Oxygen atom. They are bonded by a polar covalent bond, meaning the electrons shared by the covalanet bonds are not evenly distributed. Oxygen is more electronegative than Hydrogen and will pull the electrons from its bonds with Hydrogen closer to itself. Thus results in a partial positive dipole on the Hydrogen of the water molecule and a partial negative dipole on the Oxygen of the water molecule. These partial charges allow water to hydrogen bond with one another through a process called cohesion.
