D is the correct answer.
In the badly drawn diagram attached, you will find the <em>yellow</em> represents wavelength, which is the distance between identical points on consecutive waves.
The <em>green</em> represents the amplitude, which is the distance between the origin (middle) and crest/trough (top/bottom)
In 1922, archaeologists discovered the tomb of a pharaoh known as King Tutankhaten (too-tan-KAH-tin), or King Tut.<span> Inside a small burial chamber, they found three coffins nested inside each other.</span><span> The smallest coffin was made of solid gold.</span><span> It held the king's mummy.</span><span> (A mummy is a body that has been preserved after death to keep it from decaying.</span>) On the mummy's head was a magnificent golden mask.<span> Jewelry and good luck charms lay on the mummy and in the wrappings that protected it.</span><span> Other rooms of the tomb were filled with statues, weapons, furniture, and even a chariot.</span>
The treasures in King Tut's tomb provided an amazing glimpse into ancient Egypt.Other pharaohs also left behind fabulous riches and artwork.<span> Many of these pharaohs had great monuments built to celebrate their lives and their accomplishments.</span><span> Like King Tut's tomb, these artifacts have much to teach us about this ancient civilization.</span>
Approximately 2.7% of the world’s land is covered in housing
A triad IS a type of chord. True
