Answer:
Amino acid
Explanation:
Because Amino acids consist of an amino group (NH2) , carboxylic group (COOH) and radical (R).
I believe doubling the speed of the marble will increase the kinetic energy when it rolls down a ramp
Sorry if wrong
The statement that best describes the moon's orbit around the Earth is <span>c. elliptical with a period of about one month. Although its orbit is elliptical, the moon's orbit can be described as nearly circular because it has an eccentricity of 0.05. Moreover, it takes around 27.322 days for it to orbit around the Earth once.</span>