Answer:
Parks provide intrinsic environmental, aesthetic, and recreation benefits to our cities. They are also a source of positive economic benefits.
We live in the troposphere, the first layer of the atmosphere
You have Taal, Krakatoa, Merapi, Santa Maria, Arenal, Mauna Loa, Mayon, Galeras, Cotopaxi...
stratsphere i dont know how to spell.
A. A was deposited most recently in the diagram above, as it is located in the top, showing that is the newest layer to be added.