Why is it worthwhile to explore the moon again?

it might have lots of nickel gold and sliver that are all valuable to sustain the increase in tech.we can also live on the moon and can fit 1.46 trillion people

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

1 - wave length

2 - amplitude

3 - crest

4 - trough

explanation:

duh.