C: circular.
The Hubble sequence is a form of classification of galaxies invented by Hubble in 1926. The sequence divides galaxies into three main categories: lenticular, elliptical and spiral. There is a fourth category that is called irregular, where there are the galaxies that do not fit the characteristics to be included in the three previous categories.
This categorization is the most used even today by both amateurs and astronomers.
Answer:
nature , nurture
Explanation:
The long held debate of nature vs nurture, arises from ancient philosopers and continues in the present. In the yaer of 1869 the issue was named "Nature versus Nurture" by Englishmen Francis Galton.
It was a time where the genotypes and clues of the existence of the DNA were emerging, and people where to observe if genetics shaped personality- or if in the contrary the cultural, social, and educational experiencies will be more important in personality formation.
There exists today a widespread consensus that, to certain degree, there will be always some natural components like the eye color and color of skin, that will however after birth be shaped by environmental factors and the lifestyle.
In the case of other internal characteristics, internal and external forces will shape as well.
We are what makes the earth. Our actions are what shapes the world and yourself. For an example: If everyone recycled we could reuse certain materials and make the earth less polluted. It's up to you to have the future of your planet be the way you want it to be.
C) national and state government