It doesn't stay up there for long and there are several different ways that it can get up there. hope this helps:)
Its the epidermis because it is subdivided into two layers.
Similarities
Both plant and animal cells have eukaryotic origins
Both have common organelles like the nucleus, mitochondria and ribosomes
Both are surrounded by a cell membrane
differences
plant cells have a regular defined shape while animal cells have an irregular shape
plant cells have a cell wall while animal cells lack a cell wall
plant cells have a chloroplast for photosynthesis while animal cells do not have a chloroplast
Nitrogen is not a product of photosynthesis
Volcanic eruptions may occur in both locations, as the movement can cause the tectonic plates to allow magma through.