Answer:
Gold metal is a noble metal,i.e.,it is a non-reactive metal. As such,it does not form compounds with any other elements naturally. So it is found in its native or pure state in nature.
The definition of the period of a wave is the time that it takes for the wave to complete one cycle. As stated in the problem, the certain water wave completes one cycle in 2 seconds. From this information alone, we can conclude that the period of the wave is indeed, 2 seconds.
Answer:
b) obscures visual observation through the plane of the Milky Way.
Explanation:
The "zone of avoidance"
Avoidance zone, an area characterized by an apparent lack of galaxies near the Milky Way Galaxy plane and caused by the mysterious impact of interstellar dust. The zone of avoidance is completely a local Milky Way Galaxy effect.
The correct answer is
b) obscures visual observation through the plane of the Milky Way.
They verify scientific hypothesis by doing experiments do prove what their theory was.
Answer:
c) those caused by parasites
