It tells you that there used to be an ocean in the area the rock was found.
Answer:
Each layer in the Earth's crust changes in fundamental ways the closer it is to the planet's core. There are four layers of the Earth, and each layer has a different density, composition, and thickness. Three hundred years ago, English scientist Isaac Newton created the foundation for current scientific thought about the density of the Earth’s layers.
Answer:
(2.5, 3)
Explanation:
This question requires using the midpoint formula.
(formula is attached below as an image for better understanding)
First identify which values correspond with which variables in the formula:
First coordinate: (3, 7)
x_1 = 3
y_1 = 7
Second coordinate: (2, -1)
x_2 = 2
y_2 = -1
Now we plug the values into the formula and simplify:
((3+2)/2, (7-1)/2)
(5/2, 6/2)
(5/2, 3)
(2.5, 3
Hope that helps (●'◡'●)