When a thin crescent of the moon is visible just before sunrise, the moon is in its (a) waxing phase; (b) new phase; (c) waning phase; (d) quarter phase.

If a thin crescent of the moon is visible just before sunrise, then it happens because the moon is shrinking so it must be in waning phase in the current situation. Option c is correct.

Explanation:

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

i really hope this answer you out! it makes my day people like you and giving back to the community that has me through school! if you could do me a favor, if this you and this is the very best answer and you understand that all of my answers are legit and top notch. mark as brainliest! and have a awesome day!

ammonium chloride & tallow