The answer is B. Hope this helps. Please mark Brainliest:)
Density is mass of object per unit volume
Answer:
A. spiral galaxies are not pinwheel-shaped
Explanation:
There are three types of galaxies that include spiral galaxy, elliptical galaxy and irregular galaxy.
Elliptical galaxies are round shaped as well as elongated. Elliptical galaxies have both old and new stars but mostly it contains old stars.
Spiral galaxies are pinwheel-shaped due to the regular spinning motion of dust, stars and gas around the galactic center, at speeds of hundreds of kilometers per second which allows the matter to take a pinwheel-shape. Spiral galaxies are made up of lot of gas and dust and forms many new stars which allows the spiral galaxy to shine bright.
Irregular galaxies do not have any definite shape because of the gravitational influence of close galaxies. They also have many new stars.
Hence, the error is foudn in first sentence, where it says that spiral galaxies are not pinwheel shaped. so teh correct option is A.
Answer:
The person that developed the triangular theory of love was Robert Sternberg. :) hope this helps!
Explanation:
The correct order from smallest to largest
would be:<span>
<span>H < C < N < O < Amino acid < Globular
Structure < Amino acid sequence</span>
<span>The smallest should begin from the basic elements. Among C,
H, O and N, the lightest is Hydrogen, followed by Carbon, Nitrogen, and Oxygen.
Next is the amino acid which is the most basic unit of protein. This is the
linear structure. Followed by the globular structure which is the tertiary
structure. The whole would be the amino acid sequence which is quaternary
structure.</span></span>
