I believe the answer to your question is lithosphere !
i hope this helps :^)
The city of Los Angeles released 96 million "shade balls" into the Los Angeles Reservoir. These will serve to shield the water from the sun's heat in order to reduce evaporation and prevent algal and bacterial growth so no toxic substances are produced in the water. The balls reduce evaporation by 85%-90% so will save a lot of water yearly.
Answer:
The Cocos and Nazca plate
Explanation:
As the island is located on the northern edge of the plate Nazca and its currently drifting away from the cocos plate in east and away from pacific place. The islands of Fernandina and Isabela has super bowl morphology along with deep calderas as these all parts of shield volcano system.
