tissue
Spongy Layer - A layer of the mesophyll. The spongy layer consists of chloroplasts and parenchyma cells, and relatively large intercellular spaces. It is far less ordered than the palisade layer, and the intercellular spaces are important in gas exchange and transpiration.
the spongy layer has alot of air spaces so gases can diffuse in and out of the leaf easily
Because it contains air spaces that help regulate gas exchange in leaves.
An atmospheric layer that contains layer is stratosphere. It contains ozone layer.
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The spongy mesophyll and pallisade mosophyl layers form the middle layers of the leaf. The pallisade mesophyl contains many tightly packed cells which do photosynthesis. The spongy mesophyl contains mainly hollow space, allowing for gas exchange.
The stratospheric layer contains it. It is the layer which contains maximum of it's concentration.
The layer is stratosphere. It contains the ozone layer.
Leaves consist mostly of tissue called mesophyll, which is made up of loosely arranged cells with spaces between them. The spaces are filled with air, from which the cells absorb carbon dioxide and into which they expel oxygen.
Ionosphere is the layer of atmosphere which contains ions.
Spongy Layer
Stratosphere contains the ozone layer. It is a protective shield to the earth.