Answer:
30 CM one because the light gathering power will be better
Explanation:
Based on the information provided within the question it can be said that in this scenario the best option that you can choose from would be the 30 CM one because the light gathering power will be better on that one as opposed to the 20cm one. In telescopes the larger the lens, the clearer the image will be as it allows more light to enter and cause the image to be sharper.
<span>Arthur was
no beast or monstrous. He was a extremely shy person who ends up being a guardian angel figure for Scout and Jem. He
resembles a man that has been closed in his home for quite a long time however
there is a thoughtfulness and blamelessness about him that misrepresents any of
the silly gossipy tidbits about him that Scout and Jem used to engage in. </span>
The Han River area hope this helps plz give brainiest.