B, both in real history and this chart, America created the first atomic weapons, and Russian spies during WW2 wanted to have the advantage of such power, lest America have a monopoly on pure Force.
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After reviewing the graph you posted with the question and also reviewing the 2011 reference tables, the estimated number of daylight hours that can occur on January 1 at 40° N latitude is 8.5 hours - 9.5 hours. Either of these will be correct to use.
Answer:
L is at point (-10, 1)
Explanation:
-4 is -3 poins away from -7, so add -7 and -3 to get -10. -6 is 4 points away from -2, so add -2 and 4 to get 1. (normally -2 + 4 is 2, but since it's a graph, you have to include point 0) sorry if my explanation doesn't make a whole lot of sense lol, just how I look at it. Hope this helps! :)
We know that the poles had changed positions in the past, because of the arrangement of the crystals in the rocks made out of metal. The crystals of the metals act like the needle of the compass when the rock is cooling off and forming, they turn into the direction of the strongest magnetic field on the Earth, which is the North Pole. So by studying the rocks that are made out of metals and see the crystals arrangement and also estimate the age of the rocks, the scientist can precisely tell how has the North Pole been moving throughout time.
Igneous Rocks
At diverging plate boundaries, convection currents bring hot magma to the surface. Sometimes, magma that gets pushed up at plate boundaries cools before it gets there. It fills in cracks and voids in the bedrock
Metamorphic Rocks
Hot magma pushes itself to the surface at both divergent plate boundaries and convergent plate boundaries. This magma comes in contact with rocks as it rises to the surface.
