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The four spheres of Earth drive all of its processes and support life on our unique planet. In this video lesson, you will see examples of how Earth's spheres interact with each other to form an overall complex and connected system.
Earth's Spheres Interact
In another lesson, we learned about Earth's four spheres. These are the geosphere, hydrosphere, biosphere and atmosphere. Together, they make up all of the components of our planet, both living and non-living. And while we can describe each individually in terms of its properties and features, you'd have a difficult time finding an example where one sphere doesn't either touch or interact with at least one other.
This is important because these interactions are what drive Earth's processes. Material on Earth doesn't stay how it is. It gets recycled into other phases and forms. Plants in the ground die, and as they are broken down by microorganisms, they become soil, which can then feed new plants. Water cycles through different phases and locations, like when it evaporates from the oceans and then rains down onto the ground or into a lake. Rock also gets recycled under Earth's surface, where it is melted down and then sent back up in volcanic eruptions.
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Its aim was to rid France of the Revolution's enemies and to defend the nation from foreign invaders. All contributing factors were the civil war, fears of foreign intervention, rumors of counter-revolutionary violence, assassination attempts and government zealots.
The field of behavioral genetics is devoted to the study of just how much of personality is due to inherited traits.
The study of how genes and environment affect behavior is known as behavioral genetics. More knowledge about how the environment affects behavior can be gained by looking at genetic influence. The study of the nature and causes of behavioral differences between individuals is the main objective of behavioral genetics. Only a few of the many different methodological approaches are used in behavioral genetic research. Genes are passed down to us, not behavior or personality. Additionally, these genes contain instructions for making proteins, which can come together in a variety of ways and influence our behavior. Variation in aptitude and talent across various fields of intellectual, creative, and athletic abilities is largely influenced by genetic factors.
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From about 1900 to 1965, most African Americans were not allowed to vote in the South. White people in power used many methods to keep black people from voting. Some of these methods also prevented poor white people from voting. Today there are still laws and customs that make it harder for African Americans, other minorities, and some whites to vote.
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A. Northeastern Australia
