<span>The word is "pitch", which is exactly that: How "high" or "low" a sound is.</span>
Mutation because they change the genes
Answer:
C
Explanation:
It has to travel 600 light years before we would be able to observe the explosion.
The answer is Infrared. The infrared of the electromagnetic spectrum is most of earth's outgoing terrestrial radiation. <span>Earth is the hot body with temperature of 30 degrees on the average.</span>
Answer:
Explanation:
Rydberg formula is used to calculate the wavelengths of the spectral lines of many chemical elements. For the hydrogen, is defined as:
Where 
is the Rydberg constant for hydrogen and 
, 
are the lower energy state and the higher energy state, respectively.
