Answer:
The red lines on this map show us divergent plate boundaries.
Explanation:
The tectonic plates are in constant movement, and this results in interactions between them. At some places the plates collide, at other places slide past each other, and at some move away from each other. The last ones are the places where there is a divergent plate boundary.
The divergent plate boundaries can occur in the ocean or on land. When they occur in the ocean, they form an underwater mountain range, known as a mid-ocean ridge, which is volcanically highly active. An example of this is the mid-Atlantic ocean ridge. When these boundaries occur on land, they form rifts, where the crust starts to crack, a gap opens up, and gradually widens. An example of this is the Great Rift Valley of Africa.
Answer:
D. divergent
Explanation:
Hope this helps :)
A sample of the lava flow within the outcrop has 707 Uranium-235 atoms, and 293 Lead-207 atoms. How old is the lava flow?
Answer:
The lava flow is approximately 351.925 million years.
Explanation:
We find that atoms of Uranium-235 decays and turns into Lead-207 and that half-life of the former one is [tex]703.8\times 10^{6}[/tex] years. The initial amount of Uranium-235 is the sum of current atoms of Uranium-235 and Lead-207. The decay of isotopes is modelled by the following ordinary differential equation:
[tex]\frac{dn}{dt} = -\frac{n}{\tau}[/tex] (Eq. 1)
Where:
[tex]\frac{dn}{dt}[/tex] - Rate of change of the amount of Uranium-235 atoms, measured in atoms per year.
[tex]n[/tex] - Current amount of Uranium-235 atoms, measured in atoms.
[tex]\tau[/tex] - Time constant, measured in years.
The solution of this differential equation is described below:
[tex]n = n_{o}\cdot e^{-\frac{t}{\tau} }[/tex] (Eq. 2)
Where:
[tex]n_{o}[/tex] - Initial amount of Uranium-235 atoms, measured in atoms.
[tex]t[/tex] - Time, measured in years.
In addition, we can calculate the time constant in terms of the half-life:
[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex] (Eq. 3)
If we know that [tex]n_{o} = 1000\,atoms[/tex], [tex]n = 707\,atoms[/tex] and [tex]t_{1/2} = 703.8\times 10^{6}\,yr[/tex], then the age of the lava flow is:
From (Eq. 2):
[tex]t = -\tau \cdot \ln \frac{n}{n_{o}}[/tex]
By (Eq. 3);
[tex]\tau = \frac{703.8\times 10^{6}\,yr}{\ln 2}[/tex]
[tex]\tau \approx 1.015\times 10^{9}\,yr[/tex]
[tex]t = -(1.015\times 10^{9})\cdot \ln \frac{707\,atoms}{1000\,atoms}[/tex]
[tex]t \approx 351.925\times 10^{6}\,yr[/tex]
The lava flow is approximately 351.925 million years.
PLS help me with THIS ASAP
WILL MARK AS BRAINLIEST IF CORRECT
Answer:
north pole is A
south pole is I
prime meridian is L
Explanation:
aztec POLITICAL BOUNDARIES
Answer:
The Aztec empire was made up of a series of city-states known as altepetl. Each altepetl was ruled by a supreme leader (tlatoani) and a supreme judge and administrator (cihuacoatl). The tlatoani of the capital city of Tenochtitlan served as the Emperor (Huey Tlatoani) of the Aztec empire.
Explanation:
Which of the following situations best demonstrates direct rule?
A.
Local rulers have significant autonomy.
B.
Local administrators make day-to-day decisions.
C.
Colonial powers utilize existing political systems.
D.
Colonial administrators hold government positions.
Answer:
D
Explanation:
what is the main aim of studying atlas
Answer:
An atlas is a type of a map
Explanation:
So consider uses of maps
In Africa what do most people do to provide for themselves and their families
what is the POLITICAL BOUNDARIES for the incas civilization
Answer:
Inca, also spelled Inka, South American Indians who, at the time of the Spanish conquest in 1532, ruled an empire that extended along the Pacific coast and Andean highlands from the northern border of modern Ecuador to the Maule River in central Chile.
How have human systems and political systems shaped Central America and the Caribbean?
Answer: This quesiton can cover many topics, but if you want the most basic ones it could be transportation, culture, and the form of government
Explanation:
Many of the countries are still developing, and because of this, their governments are corrupt as heeeeeeckk. Presidents and government officials tend to steal money from its people a lot, through everything. This is because of very weak law enforcement and the limiting of powers. This causes for the economy and education in the country to go down. This also causes more poverty, which means less people go to school and get careers. This is one of the big reasons why I appreciate the free education in the U.S., we are very privileged and we should be grateful for the things we have that others wish to obtain. :(
The Panama Canal improved transportation a thousand times better. People from California or Asia had to go around South America through boat, and this took about 12 - 14 months. When the canal was built, the time decreased to about 3 months (which is a lottt). It also decreased the deaths from starvation or hitting icebergs at the south.
The cultures across the countries are very different due to different conquerors during the Colonization Era back in the 17th century. Spanish, British, French, Dutch, etc. conquered many parts of land, so that’s why Mexico speaks Spanish while its neighboring country, Belize, speak English. The culture diversity is very high in the Americas.
Where do most immigrants to France come from?
India and Pakistan
Turkey
Eastern Europe
France's former colonies in Africa
what term describes the exchange of animals, plants, disease, ideas and culture between European countries and their colonies in Latin America?
Answer: The Columbian Exchange
Explanation: The term is used to describe the enormous widespread exchange of plants, animals, foods, human populations (including slaves), diseases, and ideas between the Eastern and Western hemispheres that occurred after 1492.
Ocean waves contain energy that is transferred to them by_____ moving across the surface
Answer:
wind
Explanation:
Why is "dropping the debt" least likely to occur
Answer:
whoever you are owing that debt is earning from it, whether it's a person, business, school or even the government they are earning from what you are giving.
NEED NOW
In the 1850s, an international conference accepted the Greenwich meridian, located in London, England, as the standard location of the prime meridian. What was the main effect this decision had on cartography? O A. Maps included a longitude line marked as the prime meridian. B. Maps were based with 0° longitude placed in London, England, rather than based on the nationality of the cartographer. C. Maps included the prime meridian to diminish the effect of distortions of land areas to the far north and south. D. Maps were now centered on the prime meridian at 0° longitude
Answer:
D.
Explanation:
Its not c, maps didn't necessarily state there was a prime meridian, so i dont think it is a, and I don't think maps were ever based around a nation, they were made to see certain areas not to put their nation in the middle.
1 2 3 4 5 6 7 8 9 10 The three basic economic questions include all the following except __________. A. who will use the products produced B. what goods and services to produce C. how the products will be produced D. who will produce the products Please select the best answer from the choices provided A B C D
Answer:
muffin
Explanation:
cuz it tates good
Not an answer...
Explanation: