There aren't enough oxygen molecules in the air are higher altitudes
It has to be b because there organisms like fish that don't breath oxygen, there are plants that "eat" by way of photosynthesis which would not be eating a living thing, and there are single cell organisms that are living things as well.
1. the particles keeps on moving (move faster) when a substances gains energy and changes state.2. when water freezes it gives up some of the water's energy. this energy that is given up is the latent heat of freezing. when the water was freezing latent heat of freezing energy was being released. heat energy was actually being released3. in a stick of butter, the particles are locked together and are compact. in melted butter, the particles can slide past each other and are less compact. 4. 0 degrees celsius. 5. evaporation only happens at the surface while boiling happens all throughout.
Bi think love let me know
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