Based on the discovery of ötzi the iceman in 1991, which statement about the nature of scientific knowledge is true? it is permanent. it is changeable. new evidence is often disregarded. new evidence confirms the previous evidence.

It is changeable.

Explanation:

Scientific knowledge refers to scientifically-based understanding methods, which are justified by competent validation. It created by the human process of science and its social context, so it can change over time. The reason that it is varying comes from new science observations, as well as social, political or religious beliefs. As a result, to develop a deeper understanding it is important to carry out research about the context of the time in which scientific ideas were developed.

not to sure sdi, strategic defense initiative

your answer will be b. improving roads, bridges, and other infrastructure. hope i !