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ser-zykov [4K]
3 years ago
14

Using complete sentences, explain why the oldest dated rock (approx. 4.0 billion years old) is younger than the age of the Earth

(4.55 billion years).
Geography
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

Primitive rocks of the earth slowly evolved with relatively cool temperature.

Explanation:

  • The oldest rocks of the earth have been broken down by the process of the erosion and have been estimated to be more than 4 billion years old and were formed during the hadeon eon.
  • When the surface of the earth was exposed at various places such as the geologic shields and is younger than the age of the earth and formation of the universe some 4.5 billion years ago as mineral contents shows of the late crystallization of magma.
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Which of the following geographical conditions led European nations to colonize Africa?
Svetradugi [14.3K]

The quantity of natural resources in Africa led European nations to colonize Africa.

Answer: Option 3

<u>Explanation:</u>

Africa is well known for its natural resources. African countries’ soil was rich in minerals. Also, some of the African Countries are abundant with Oil resources.

The Europeans Colonized Africa as they can trade that wide variety of mineral resources and all the organic products. That includes Diamonds to rocks that contained uranium, zinc, tungsten, etc.. Also, tea, coffee, sugar, and tobacco were 90% percent of the exports from Africa.

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3 years ago
In the 1980s the northeast region of Brazil received almost no precipitation for how many years?
mihalych1998 [28]

Answer:

3 years

Explanation:

Even there was  a dry year in 1979, the area received almost the normal amount of rain in 1980.

In 1981 however, the year was quite dry, with rainfalls in drop of almost 20%, that began one of the most important drought in the history of Brazil.

In 1982, rainfalls were down by 30% and it got even worse.

In 1983, the rainfalls were down by about 35%, essentially destroying all the agriculture system that had been severely damaged by the two previous years.

In 1984, rain came back a bit higher than its traditional levels, and in 1985, the area was flooded by rain surpassing the average by 60%!

5 0
2 years ago
Las Vegas, Nevada, has seen a great increase in the demand for water since it is one of the fastest growing regions in the U.S.
klasskru [66]

Answer:

The statement is true. Las Vegas, Nevada, has seen a great increase in the demand for water since it is one of the fastest growing regions in the U.S.

Explanation:

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According to the 2010 national census, the city itself has 583,756 inhabitants, and its metropolitan region has about 1.9 million inhabitants. It is the 30th most populous city in the United States and is considered to be the fastest growing city in all of North America.

Population growth was especially marked in the 1990s, when the population went from a little over 200,000 people to more than 500,000. This brought a consequent lack of resources due to the desert location of the city, which was solved only with investment in infrastructure by the state government.

7 0
3 years ago
Which of the following are overseas territories in<br> South America?
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Answer:

As of 2020, there are 12 countries in South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay and Venezuela. French Guiana is an overseas territory of France and not an independent country.

Explanation:

8 0
1 year ago
Earth's tallest mountain ranges are formed at _______ plate boundaries.
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My choice would be D, because Mount Everest is located in landlocked Nepal.
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3 years ago
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