Riddle of the day

A section of the calendar dedicated to mother nature.

What am I?

I make you see the beauty of nature through colors, My name makes things weigh less And I have no weight at all. What am I?

I start out the same as others, Then grow to four legs and four arms, And two hearts beat inside, Until the separation. What am I?

I don’t speak but there is no word I cannot make. What am I?

I measure out time, Until in time, All is smashed into me. What am I?

Soldiers line up, spaced with pride, Two long rows lined side by side, One sole unit can decide, If the rows will unite or divide. What am I?

I am worthless, yet when added to others I add worth. I confounded the ancient Greeks, yet I changed men’s understanding. What am I?

I’m Arabic, but if you speak English, you probably use me every day. What am I?