I am seen, then so may you. If I am absent, so is your sight Some say I am blinding, but I am not a thing. I am but energy, pure and simple. What am I?

Three letters make up my name, I twist, I slide and slither all the same. In rivers or oceans I wriggle with ease, What am I that moves as I please?

I start as a seed yet grow sky-high, My body is hollow, though closer you spy. I bend with the wind but rarely I break, In panda’s delight, their hunger I slake. What am I?

without this a ship may not move and yet the wind must also favor as to

Up and down, top and side. Not big but small, rolling right along