Given a scientific passage and an answer, generate a question for the given answer.

Input: Consider Input: Passage: Nobody really has such colorful eyes! The colors were added digitally after the photo was taken. They represent all the different colors of light. Light is a form of energy that travels in waves. Light of different colors has different wavelengths. Answer: wavelengths

Output: Different colors of light differ in terms of which important attribute?

Input: Consider Input: Passage: As you would expect, where plates collide there are lots of intense earthquakes and volcanic eruptions. The subducting oceanic plate melts as it reenters the mantle. The magma rises and erupts. This creates a volcanic mountain range near the coast of the continent. This range is called a continental arc . The Andes Mountains, along the western edge of South America, are a volcanic arc ( Figure below ). Answer: melts

Output: The subducting oceanic plate does what as it reenters the mantle?

Input: Consider Input: Passage: 12.4 Viscosity and Laminar Flow; Poiseuille's Law Laminar flow is characterized by smooth flow of the fluid in layers that do not mix. Turbulence is characterized by eddies and swirls that mix layers of fluid together. Fluid viscosity is due to friction within a fluid. Representative values are given in Table 12.1. Viscosity has units of. Answer: turbulence
Output: What property is characterized by eddies and swirls that mix layers of fluid together, unlike laminar flow?