the correct answer is Evaporation
hope this helps :)
Answer:
Can you provide us with a picture of the graph?
Explanation:
No one can answer the question if we can't even see the graph you're asking about.
Answer:
These are things that won't be going away. Natural gasses and fossil fuels will likely run out someday or become much harder to find. When you use these sources of energy, they won't be going away and therefore will be sustainable because we can always continue using them.
Does that make sense?
Explanation:
We see all of the moon's <em>shapes</em> every 29.53 days. But
there's about 45% of its <em>surface</em> that we never see.