What Am I Riddles

Question: I am the black child of a white father, a wingless bird, flying even to the clouds of heaven.
I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth I am dissolved into air.

What am I?

Question: sometimes i hang, sometimes im crusty, sometimes im bloody, and yellow. What am i?

Question: Upon your lonely journey I accompany you, whether you travel through endless mountains or seas of blue. Wherever you go, I keep your place. Lost you're not, when I'm embraced. What am I?

Question: The more it dries, the wetter it becomes.

What is it?

Question: When you fall in me your as happy as could be, but you fall into depression when you lose me.

What am I?