Taking pictures, it is physical evidence
I think the best answer from the choices listed above is the first option. The biome that dominates the region of the United States is a grassland. But the correct answer would be a temperate deciduous forest. This biome occupies almost half of the east region of the US.
Cell wall because their has to be something protecting it.
the ozone layer got alot bigger
Answer:
Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.