<span>The correct answer is letter C. Experimentation. For a scientist, assessing the validity of information requires experimentation. In statistics and sciences, the validity of an information has no agreed definition but it generally refers to the how the concept is being experimented before reaching to the point of conclusion.</span>
<span><span>1.
</span>In an effort to protect themselves, all the
kingdom of summer built massive walls outside their cities. By this, they will
be able to protect themselves from their opponent’s surprise attacks. Their
walls were made up of stones and mud bricks, and woods. These walls measured
5.9 miles in length and 39 feet in height. These walls also served as their
defense to win their battle. By building walls their opponents cannot easily
enter their cities. However, some of their enemies dig up tunnels under their
walls to be able to enter. Their defenders used smokes into the tunnels to
protect their city from them</span>
Answer:
Yes
Explanation:
Some of the sources could be false (Wikapedia)
