The Hertzsprung-Russell diagram is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900's by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the color of stars against their absolute magnitude
Depending on its initial mass, every star goes through specific evolutionary stages dictated by its internal structure and how it produces energy. Each of these stages corresponds to a change in the temperature and luminosity of the star, which can be seen to move to different regions on the HR diagram as it evolves. This reveals the true power of the HR diagram – astronomers can know a star’s internal structure and evolutionary stage simply by determining its position in the diagram.
The Hertzsprung-Russell diagram the various stages of stellar evolution. By far the most prominent feature is the main sequence (grey), which runs from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) of the diagram. The giant branch and supergiant stars lie above the main sequence, and white dwarfs are found below it.
Strong acids contain many H+ ions. Strong bases contain many OH- ions. These ions disrupt certain bonds within enzymes called hydrogen bonds, ionic bonds, hydrophobic interactions or hydrophilic interactions. Disrupting these bonds causes the active site of the enzyme to change shape, altering the enzymes tertiary structure. This means that substrates can no longer fit in to the enzymes active site because they are no longer complementary in shape, which stops the enzyme performing its funtion
Well, I know 4 is A and 5 is D.
Eating foods that contain saturated fats raises the level of cholesterol in your blood. High levels of LDL cholesterol in your blood increase your risk of heart disease and stroke.
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Answer:
Periodic table
Explanation:
Attached is a Public Domain version of the Periodic Table.