Answer:
D. El Parque Nacional Yellowstone pronto estará bajo un nuevo liderazgo
Answer:haemoglobin
Explanation:
Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Answer:
Adult cottonmouths are brown.
Explanation:
An observation is a fact that you can clearly see and don't have to guess if it is true or not.
The weathering process occurs when rocks are exposed to the hydrosphere (water) and atmosphere (air).