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kenny6666 [7]
3 years ago
12

Which of the following best describes the economy of Africa?

Geography
2 answers:
DENIUS [597]3 years ago
6 0
The economy of Africa consists of the trade, industry, agriculture, and human development. Following the independence of African countries during the 20th century, economic, political and other means
Nataly [62]3 years ago
4 0

Answer:

Export based

Explanation:

its the answer for apex

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quiz lethow does the ocean floor preserve evidence of past magnetic reversals. a) magnetic particles in basalt orient with the m
Sloan [31]

The ocean floor preserve evidence of past magnetic reversals because c) the ocean floor is uniformly old, preserving the earth's 4.6 billion history.

<h3 /><h3>What subjects need to be studied to study the earth's magnetism?</h3>

Paleomagnetism is the study of naturally occurring residual magnetism in rocks with the goal of understanding the strength and direction of the Earth's magnetic field in the geologic past and understanding the motion history of plates. Paleomagnetic fields have played a large role in confirming undersea propagation, through the discovery and understanding of seafloor anomalies. In the 1960s, geophysicists studied the magnetic properties of the ocean floor and began to discover some amazing properties.

The seabed has a system of linear magnetic anomalies in which a "band" has all its magnetic minerals oriented in the same way as the current magnetic field and the magnetic minerals in the bands alternating is oriented in the opposite direction. These bands are oriented parallel to the mid-ocean ridge system; where the ridges compensate for the transform error, the anomalies are also compensated. Symmetrical anomalies are found on either side of the ridge, and similar symmetry is found in ridges around the world.

Learn more about Paleomagnetism brainly.com/question/12990353

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7 0
1 year ago
Label the two city-states Athens and Sparta. Turn to the map on page 387 in your book. In what modern country are Athens and Spa
tangare [24]

1. Athens is located in the southeastern part of Greece, while Sparta is located in the southern part of Greece.

Explanation:

Athens and Sparta were both ancient city-states. They were part of the Hellenic world, or ancient Greece as it is more often referred to. The two cities were competitors, and more often than not they were in bad relations than in good ones.

The people from neither Athens nor Sparta referred to them as Greeks, but instead they identified themselves with the city-state they belonged to, thus Athenians and Spartans. These two city-states were very different in their political organization and the way the people lived, with Athens being democracy, but also very restrictive to the women, while the Spartans were a militaristic monarchy, and the women had much more freedom.

Both of these ancient city-states were located on what is now Greece. Athens is in fact the capital of modern day Greece.

Learn more about the relations between Sparta and Athens in ancient Greece brainly.com/question/4470593

#learnwithBrainly

2. The name of the country, Greece, doesn't appear on the map because there was no such country in existence until the mid 19th century.

Explanation:

Contrary to the popular belief, a country named Greece did not existed in the antique period. The country formed and started using this name only in the mid 19th century. Instead of one country in what is now Greece (without Macedonia and Western Thrace), there were multiple city-states, all of which had their own name and identity.

The city-states didn't had one common ethnic identity, but instead the people identified with the city-state in which  they were living in. A term that was used to somewhat describe all of the city-states was Hellenistic, which was based on the language.

This part of the Balkan Peninsula was actually the only one where there were no people that formed a unified country, usually in the form of kingdom. All of the other groups of people on the Balkan had their own kingdoms, such as:

  • Macedon
  • Paionia
  • Illiria
  • Thrace
  • Dardania

Learn more about Greek city-states brainly.com/question/10700150

#learnwithBrainly

7 0
3 years ago
What is the other type of crust that exist on our planet?​
Sladkaya [172]

Explanation:

Abstract

Most planetary systems are formed within stellar clusters, and these environments can shape their properties. This paper considers scattering encounters between solar systems and passing cluster members, and calculates the corresponding interaction cross-sections. The target solar systems are generally assumed to have four giant planets, with a variety of starting states, including circular orbits with the semimajor axes of our planets, a more compact configuration, an ultracompact state with multiple mean motion resonances, and systems with massive planets. We then consider the effects of varying the cluster velocity dispersion, the relative importance of binaries versus single stars, different stellar host masses, and finite starting eccentricities of the planetary orbits. For each state of the initial system, we perform an ensemble of numerical scattering experiments and determine the cross-sections for eccentricity increase, inclination angle increase, planet ejection, and capture. This paper reports results from over 2 million individual scattering simulations. Using supporting analytic considerations, and fitting functions to the numerical results, we find a universal formula that gives the cross-sections as a function of stellar host mass, cluster velocity dispersion, starting planetary orbital radius, and final eccentricity. The resulting cross-sections can be used in a wide variety of applications. As one example, we revisit constraints on the birth aggregate of our Solar system due to dynamical scattering and find N ≲ 104 (consistent with previous estimates).

3 0
3 years ago
Read 2 more answers
I need help i dont get it
Lina20 [59]

Answer:

I believe the radius is 12

3 0
3 years ago
How do contour lines show elevation, slope, and relief?
Ivanshal [37]
A contour line is a line of 'equal height': every point on a contour is the same height above sea level.

The closer any two contour lines are the steeper the hill is: and the further apart they are the move level the ground.

If a group of contour lines suddenly move to form a V shape then the hill either has a promontory sticking out from it or a valley in it.
4 0
3 years ago
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