Answer:
many alveoli are present in the lungs with a shape that further increases surface area. Thin walls - alveolar walls are one cell thick providing gases with a short diffusion distance. Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface.
Explanation:
Answer:
The Sun is not a biomass energy source.
Explanation:
Biomass is plant or animal material used for energy production. The Sun is neither plan nor animal material. Paper is produced by wood, wood chips also, manure is from animals so all those are a biomass energy source.
Yes it will affect the ph level
The answer is a fault. A fault is a place where the crust of the lithosphere has fractured.