Answer:
Elliptical galaxies are one of the three types of galaxies. They have a rounded shape of an ellipse, like a stretched-out circle. They lack the swirling arms that are a main feature of spiral galaxies.
The wavelength of reflected light, think of the symbol of Pink Floyd when thinking about light and color
Answer:
The definition of conceptual is something having to do with the mind, or with mental concepts or philosophical or imaginary ideas. An example of conceptual is when you formulate an abstract philosophy to explain the world which cannot be proven or seen. "Conceptual."
Explanation:
Answer:
all elements have a different atomic number
Explanation:
Atomic number of element does not affect their reactions with others
What are the statements ?
