A measure of the amount of light given off by a star is its absolute luminosity or magnitude. Absolute magnitude<span> is the measure of </span>intrinsic brightness<span> of a celestial object. It is the hypothetical </span>apparent magnitude<span> of an object at a standard </span>distance<span> of exactly 10 </span>parsecs<span> (32.6 </span>light years<span>) from the </span>observer<span>, assuming no </span>astronomical extinction<span> of starlight. </span>
Answer:
The concept behind how the stock market works is pretty simple. Operating much like an auction house, the stock market enables buyers and sellers to negotiate prices and make trades. ... Investors can then buy and sell these stocks among themselves, and the exchange tracks the supply and demand of each listed stock.
Explanation:
There's two main reasons why geologists think that the Earth's core is made out of iron:
1. The seismic waves that travel through the core are moving at a velocity that depends on the properties of the material the waves travel through, and the best fit in this case is the Iron (Fe).
2. The iron is the most abundant metal in the universe.
Answer:Information from deep-ocean exploration can help predict earthquakes and tsunamis and help us understand how we are affecting and being affected by changes in Earth's environment.
Explanation:
Ocean exploration can improve ocean literacy and inspire young people to seek careers in science, technology, engineering, and mathematics.
