Both Radioactive dating of rocks retrieved from the world and Comparing cratering rates on one world to those on another.
Geologists can find the relative age of impact craters on a world because
the ones on top must be younger.
Scientists know the history of Earth's magnetic field because the magnetic field gets frozen into rocks, and plate tectonics spreads them out.
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<span>The best and most correct answer among the choices provided by the question is the fourth choice "reaching the mantle caused by the movement of two tectonic plates away from each other"</span><span>
The Gakkel Ridge is a mid-oceanic ridge, a divergent tectonic plate boundary between the North American Plate and the Eurasian Plate. It is located in the Arctic Ocean between Greenland and Siberia, and has a length of about 1,800 kilometers.
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The Earth is not getting hotter because it is getting to the center of the universe.
There's two main reasons as to why the Earth is getting hotter:
1. Natural cycle
We are in a period when the Earth is in between glaciation, with one of them being behind us, and the other one being in the future. In the period in between, the Earth has the tendency to become warmer and warmer because of the change of the composition of the atmosphere, as well as the ocean currents.
2. Human activity
The people have been contributing for the increase in the warming process in the past century, and that has been done with the large release of CO2 and methane in the atmosphere. These two gases are gases that trap more heat in the atmosphere, thus resulting in an increase of the Greenhouse effect.
Answer:
Prediction.
Explanation:
A prediction is often written as an if/then statement.
This ultimately implies that, a prediction is based on hypothesis that hasn't proven yet or isn't backed up by any evidence. Thus, it is typically an if statement that also leads to an outcome (then).
<span>The desire of human to take control of a specific area or certain group of people is called the territoriality. This is associated with how spaces should be used, its ownership, and occupancy, and possessions. This is also associated with the wanting to lead the group of people living in a certain populace. </span>