Hair, Skin color, Eye color
Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.
I would say "A"
The correct answer to the question stated above is obviously letter A. <span> preventing decomposition.
Bacteria are used in:
</span>1. decomposing materials
2. breaking down insulin
<span>3. carbon production</span>
>>Bacteria never prevent decomposition of any object.
Plants, which had begun colonizing the land during the Silurian Period, continued to make evolutionary progress during the Devonian. Lycophytes, horsetails and ferns grew to large sizes and formed Earth's first forests. By the end of the Devonian, progymnosperms such as Archaeopteris were the first successful trees
Earth is natural and Technology has a thing that can make you sick......
