Polaris is one of the brightest stars in the sky and is the brightest star in the constellation Ursa Minor. It is very close to the northern celestial pole, and Polaris is often referred to as the Northern Star. Polaris is estimated to be approximately 46 times larger than the Sun. Why does Polaris appear to be so much smaller than the Sun to the human eye? A) The Sun is a brigher star than Polaris.
B) The distance from Earth to Polaris is much greater than from Earth to the Sun.
C) The Sun is actually made of many different stars, giving it the appearance of being big.
D) The light from the Sun is spread out in our atmosphere, giving it the appearance of being large.

this transfer is call conjunction

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.