I believe that is mistral.
Answer:
The time span between 1680 and 1766 (lines 1 and 2) is 86 years: 1766 − 1680 = 86 years. During this time, the falls receded an average of 5.8 feet per year: 500 feet ÷ 86 years ≈ 5.8 feet per year.
The time span between 1856 and 1876 (lines 3 and 4) is 20 years: 1876 − 1856 = 20 years. During this time, the falls receded an average of 25 feet per year: 500 feet ÷ 20 years = 25 feet per year.
Explanation:
plato answer ^
I would say these would be transform boundaries where the tectonic energy appears to be transformed from one plate to another such as off the coast of Guatemala so it is not a simple process of subduction,.
It becomes brighter because, THE CORE CONTRACTS, RAISING THE TEMPERATURE AND EXTENDING THE HYDROGEN BURNING SHELL OUTWARD. This stage is called the hydrogen shell burning phase and during this phase the star grows luminous.
