Answer:
Plate tectonics
Plate tectonics is the scientific theory explaining the movement of the earth's crust. It is widely accepted by scientists today. Recall that both continental landmasses and the ocean floor are part of the earth's crust, and that the crust is broken into individual pieces called tectonic plates
When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. Old, dense crust tends to be subduction back into the earth.
<span>The region of the U.S. is most likely to have a population of predominantly Sewdish, Norwegian, Danish, German and Polish backgrounds is the Midwest.</span>
Some examples of a hydrosphere are:
- Seas – the Black Sea, Caspian Sea, Persian Gulf, Adriatic Sea, Mediterranean Sea, and the Red Sea.
- Glaciers,
- Lakes.
- Rivers.
- Streams.
- Clouds.
<h3>What is a Hydrosphere?</h3>
This refers to the total amount of water on a planet and includes water that is on the surface of the planet, underground, and in the air.
Hence, we can see that some of the components of a hydrosphere are liquid and frozen surface waters, groundwater held in soil and rock, and atmospheric water vapor.
Therefore, Some examples of a hydrosphere are:
- Seas – the Black Sea, Caspian Sea, Persian Gulf, Adriatic Sea, Mediterranean Sea, and the Red Sea.
- Glaciers,
- Lakes.
- Rivers.
- Streams.
- Clouds.
Read more about hydrosphere here:
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Primary economic activities are defined as extracting raw materials. This includes mining, arable and pastoral farming, forestry and fishing.
Secondary economic activities include manufacturing good using raw materials. An example could be anything made in a factory, such as cars or processed foods, to a house or roads.
Tertiary economic activities provide services and good to people. Teachers, shops and doctors provide tertiary economic activities.
1. Declines in primary sector employment
Machines take away the need for manual labor in the primary economic sector.
As there is often higher paid jobs in the tertiary economic sector people begin to get an education and aim for jobs in the tertiary sector instead.
2. Decreases in infant mortality rate
Education of basic health care helps communities give a child a healthy environment growing up.
More availability of medical resources and professionals help to treat the illnesses that could cause the death of an infant.
3. Improvements in women's social status
Higher education for both women and men encourages gender equality.
Women become less dependent on men with more education and can gain better jobs and equal social status.
