Answer:
Explanation:
The refractive index of the suspected glass can be known by using the backe- line method. This process takes place in a petrographic microscope. In this method an oil comparable to the refractive index of the glass is used. At a point when the refractive index of the glass becomes equal to that of the oil in which it is immersed the yellow line under the observation of the plane polarized light gets disappeared. This method can be used to identify the refractive index of the suspect glass and comparing it with the source of origin or sample glass.
The earliest culture known to create artwork with Jade in the New World was the Olmec. The correct option among all the options that are given in the question is the second option or option "B". The Olmec's are famous because they were the first major civilization to have come up in the country of Mexico.
Answer:
It's is South Atlantic Ocean
So, Ocean is the correct answer
A globular cluster is a collection of stars in the form of a sphere that orbits a galactic core. Global clusters are generally tightly bound by gravity, making the stellar density higher toward the center, and giving them their spherical shapes. Globular clusters are usually found in the halo of a galaxy.
The fact that the gravitational pull of a globular cluster is rather weak means that a single supernova explosion can blow the interstellar gas out of a globular cluster. This would mean that the gas left is not dense enough to form new stars. After the first generation, globular clusters cease to form new stars because they lack material due to their deficiency in heavy elements.
Steel production in the United States is mostly used for:
<h3>What is Steel?</h3>
This is an alloy which contains iron and carbon that is typically used in engineering constructions.
In the United States of America, the steel production has been majorly used for the electrical furnaces which accounts for over 68% of total steel production.
Please note that your question is incomplete so I gave you a general overview so you can have a better understanding of the concept.,
Read more about steel production here:
brainly.com/question/7887917
