A star's apparent brightness<span> is its </span>brightness<span> seen from Earth. A star's </span>absolute brightness<span> is the </span>brightness<span> the star would have if it were at a standard distance from Earth
</span>so if your riding in a car at night and your passing some one on the road in there point of view your apparent brightness is lets say 10 and if your are farther a way your estimated brightness or star's absolute brightness would be 10.<span />
The answer is C- The need for Oxygen. <span />
Answer:
mercury is one of the inner planets.
Explanation: The inner planets are also called terrestrial planets.
*gases escaped from them during the planets’ formation.
*mercury, Venus, earth and mars are the four inner planets. they are also called terrestrial planets because they have solid and rocky surfaces similar to earth.
* the inner planets are much smaller than the outer planets (Jupiter, Saturn, Uranus and Neptune).
* the inner planets are composed of mainly heavy metals such as iron and nickel, and they do not have moons. during the inner planet’s formation, thick gas atmospheres are blown away .
Answer:
D it has 21 atoms 7 carbon 6 oxygen 5 hydrogen 3 nitrogen
<span>Proteins are made of Amino Acids, and the sequence of these determine how the protein will fold up and take shape which ultimately determines its function.
The amino acids are held together with peptide bonds, which is a special type of chemical bond.</span>
