Location 2 is cooler than Location 3 and Location 1 because it's at a higher altitude
The majority of the accessible drinking water on our planet comes from glaciers.
The best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
I don't know if this helps or not but you would want to know the age of the rock (absolute dating) and from there you will be able to know the age of the fossil and what caused it to die.
