Legislation to protect refugees may not be the first thing that comes to mind in these days of debate over immigration reform.....
The age of the Earth is around 4.6 billion years old
The correct answer is D. ocean floor mapping and earthquake tracking
Tracking earthquakes is helpful because it shows where it came from and what caused it, as well as how it affected the environment, while ocean floor mapping is useful because it shows how the bottom of the sea changed over time which happens due to tectonic activity.
B. Natural selection and Evolution both show the change over time in the survival of a specific organism. Natural Selection chooses traits that correspond the best with the ecosystem, while evolution gradually changes the species as a whole to cope with the surroundings.
<span>Cumulus clouds are the puffy ones that people usually draw and see when they look up. They remind some people of cotton balls. Stratus clouds are the flat ones that take up the whole sky and are usually the ones you see when it's raining and such.
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