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 ^
The degree of vertex D is if it is an indegree or outdegree, it is 1 degree in vertex D.
It connects central europe with eastern Europe. it is a significant shipping/trade route
Answer:
Different pH can be better for the plant's soil and help it grow mroe rapildy or slower.
Explanation:
Having different pH's can affect how much nutrients a plant can get. The best pH for a plant is 5.5-7.0. Under 5.5 is too acidic and can kill the plant.
Natural gas and oil i think