It could be radiation because radiation means <span>the emission of energy as electromagnetic wave, but potential fits it best</span>
It is located through seven countries in South America which are Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina. This is the Andes Mountains which is about 7000 km long. This is known as the world's longest mountain range.
this is simple the word your looking for is 8 letters long and the definition is key to the answer
If,
![d \: = \: \frac{1}{2} a {t}^{2}](https://tex.z-dn.net/?f=d%20%5C%3A%20%20%3D%20%20%5C%3A%20%20%20%5Cfrac%7B1%7D%7B2%7D%20a%20%7Bt%7D%5E%7B2%7D%20)
then, with 3x time t, (suppose, new distance is h)
![h \: = \: \frac{1}{2} a {(3t)}^{2}](https://tex.z-dn.net/?f=h%20%5C%3A%20%20%3D%20%20%5C%3A%20%20%20%5Cfrac%7B1%7D%7B2%7D%20a%20%7B%283t%29%7D%5E%7B2%7D%20)
![= \frac{1}{2} a9 {t}^{2}](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20a9%20%7Bt%7D%5E%7B2%7D%20)
![= 9 \: \frac{1}{2} a{t}^{2}](https://tex.z-dn.net/?f=%20%3D%209%20%5C%3A%20%20%5Cfrac%7B1%7D%7B2%7D%20a%7Bt%7D%5E%7B2%7D)
![= 9d](https://tex.z-dn.net/?f=%20%3D%209d)
Therefore, new distance h will be 9 times bigger than distance d.
answer: c