The exosphere is the thinnest layer of earths atmosphere. This also the layer of earth's atmosphere that is closest to space.
Answer:
Is in the image
Explanation:
Look at the picture below
The stomata closes down at night when there is no sun and there's no photosynthesis. It also closes down when the air is dry and when it's hot so as to prevent excessive loss of water.
Anatomical there are similarities among many organisms. Homologous structures <span>found in different species that are anatomically similar because they have been inherited from a common ancestor.</span>
These fossils are very useful for us because we can use them to date the layers of rock that they are found in. Fossils that can be used in this way are called index fossils, and rock layers with the same index fossils in them can be correlated. Not my answer, link here for full
http://peter-mulroy.squarespace.com/correlating-rock-layers/
