Answer:
a line or surface within or on the earth connecting points of equal temperature.
Answer:
Your reason: London was one of the first cities to industrialize.
Explanation:
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Diamond is the hardest mineral on the Mohs scale.
<u>Explanation:</u>
In Vickers scale and Mohs scale, Diamond is the hardest natural materail. Antiquity is the one that is associated with the hardness of the diamond when compared with the hardness of other materials. The perfection of the crystal, purity and the orientation are the major factors that dertmines the hardness of the Diamond. Hence, Diamond can be scartched only with other diamond materials.
Because of the hardness of the diamond it comes under the category of Gemstone. The Copeton and Bingara in New Southwales is the place where the most hardest diamond originates. These are used for the purpose of polishing other diamonds since they are smaller.
A graph that shows the relationship of a star's temperature to its absolute magnitude is called HERTZSPRUNG - RUSSEL DIAGRAM.
Hertzsprung Russel diagram is a scatter plot that is typically used to show the relationship between star absolute magnitude and their effective temperatures. The absolute magnitude of a star refers to how a bright a star will appear if it is located 32.6 light years from the earth.
Astronomers use Hertzsprung Russel diagram to classify stars into different classes based on their colour, spectral, temperature and evolutionary stage.
