"Politeness is half good manners and half good lying" because when someone asks you how you are, you politely reply 'I'm doing good/well' even if your not - a lie. :)
Credible means able to be believed or is convincing
I only know words that are like that
Answer: the essay your doing or anything but I do believe e that the space explorations are worth the cost because they help us learn about more of are solar system the explorations help us to know if are solar system is in a state of where we don’t have to worry about it satellites help us know if anything will destroy the solar system^^! Hope it helps
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