List two reasons why western powers of Europe, and the United States wanted to gain territories in Southeast Asia and the pacific islands

Earth's Fresh Water:

·Streams

·Ice Sheets

·Glaciers

·Ice Caps

·Ice bergs

·Ground water(From rain water that has been soaked into the ground and went through the filtration process.)

·Rivers

·Lakes

All of those are examples of Earth's fresh water sources, which fresh water is very important.

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Answer:

D. Reversal of Earth's magnetic field

Explanation:

The earth's magnetic field changes over time and this causes changes in the direction of magnetization of magnetic elements or minerals in rocks.

Our magnetic field is widely believed to originate from activities within the outer core where molten iron and nickel moves. The flow of these molten elements results in the production of the magnetic signatures on earth surface.

Some elements and minerals within rocks are capable of recording the direction of magnetic fields at a period in time. Before magma cools, such minerals in these rocks aligns their poles to that of the prevailing direction of the earths magnetic field. This is how the magnetic changes at the mid-oceanic ridges are recorded.

Answer:

The process of seafloor spreading is responsible for "creating magnetic changes" along mid-ocean ridges.

Explanation:

• When "seafloor spreading" occurs along the mid-oceanic ridges, it results in a drastic splitting of the oceanic floor over a large area.

• This in return changes the orientation of the predominant magnetic fields and the intensity of their strength in the region.

• The mid-oceanic ridges are majorly constituted of solidified lava which is rich in iron.

• The changes that occur in the local magnetic fields due to seafloor spreading thus create magnetic changes along the mid-oceanic ridges.

Physical geography focuses on natural processes of the earth, including climate and plate tectonics, whereas human geography studies the effect and behavior of humans and how they relate to the physical world. The two fields of geography are interrelated.

Answer:

According to the lecture, 75% of US jobs are focused on providing services. This means they are in the tertiary sector of the economy.

Explanation:

The service sector or tertiary sector is the economic sector in which companies want to make a profit by selling their goods or services. The name belongs to the meso-economy, which studies industries.

The tertiary sector includes shops, hotels, restaurants, theaters, hairdressers, business service providers, lawyers, IT companies and other service providers. In developed economies such as in Western Europe and the United States, between 70 and 80 percent of the gross domestic product is realized in the service sector.