Biology

8 July, 22:21

Galaxies are systems of stars, gases, and dust that exist in a wide variety of shapes and sizes. The simplest classification scheme devised by Edwin Hubble recognizes four basic types of galaxies; elliptical, spiral, barred spiral, and irregular. Identify the shape of Earth's galaxy. A) Spiral B) Lenticular C) Elliptical D) Irregular

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