Answer:
I am million people's wakeup call. What am I?
I'm a god. I'm a planet. I measure heat.
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
The more you have of me, the less you see. Who am I?
Without this, H2O would just be 2O
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?