Why do scientists think Earth's core contains iron?
Answer:
Iron is a heavy element and would sink into the planet.
Explanation:
explain how the geography of eastern europe has influenced the spread of culture and politics
Answer:
The Ural Mountains, Ural River, and the Caucasus Mountains are the geographical land border of the eastern edge of Europe. E.g. Kazakhstan, which is mainly located in Central Asia with the most western parts of it located west of the Ural River also shares a part of Eastern Europe.
Help!!! il give brainlist
Answer:
What do you need help with?
classify each triangle by its side
A)scalene
B)equilateral
C)isosceles
Answer:
A) Scalene- all three sides have different measures, therefore a scalene triangle does not have any congruent sides.
B) Equilateral- a triangle where all three sides have the same measure is called an equilateral triangle. And every equilateral triangle is also an isosceles triangle, since it has two sides that are congruent.
C) Isosceles- An isosceles triangle has two sides that have the exact same measure.
Explanation:
Just cause homie
ANSWER NOW AND YOU GET 11 and ill answer one of ur questions
Answer: Euphrates River
Which physical feature is in China?
a.) Mount Kaliash
b.) Taklamakan desert
c.) Mekong river
Answer:
isn't it b.) Taklamakan desert
Explanation:
Answer:
all
Explanation:
because all present in china
5. A destructive plate boundary is when? Shade one circle only. [1 mark]
A 2 plates are moving towards each other (converging). Often an oceanic plate will subduct under a continental crust
B 2 plates are moving past each other in different directions or in the same direction but at different speeds.
C 2 plates are moving apart (diverging)
D there is a hot spot
Answer:
C is the correct answer
The table below shows the fossils of organisms found in various layers of an undisturbed rock:
Which statement about the organisms whose fossils are found in the rock is correct?
A: Organism W existed much before Organism Y
B: Organism Y existed over the longest period of time
C: Organism Y and Organism U were alive over the same time span
D: Organism W existed over a shorter period of time than did organism X
Phoenix, Arizona, is an example of an American city that developed organically, similar to many European cities.
Please select the best answer from the choices provided.
T
F
Answer:
False (:
Explanation:
False, I do hope this helps! Good luck on the quiz!
ANSWER FIRST AND I WILL ANSWER SOME OF UR QUESTIONS
Answer:
c
Explanation:
What is the largest particle size that a stream can transport at a velocity of 5 centimeters per second?
1. Cobble
2.pebble
3.sand
4.silt
Answer: it’s 3, Sand.
Answer:
Silt
Explanation:
What led to the early reforms and put Athens on the path to early forms of democracy?
Answer:
Athenian democracy developed around the 6th century BC in the Greek city-state (known as a polis) of Athens, comprising the city of Athens and the surrounding territory of Attica. Athenian democracy is often described as the first known democracy in the world. Other Greek cities set up democracies, most following the Athenian model, but none are as well documented as Athens' democracy.
Explanation:
Define the following key term: fertility rate
Answer:
fertility rate is the ratio between the number of live births in a year and the whole female population of childbearing age (average number of women between 15 and 50 years of age over the year).
Explanation:
what business Factor makes it difficult for companies to manage forests sustainably
No............................................................................................ Maybe...................................................................
Still No.
Many People Suffer from ______ as a result of the nuclear tests carried out in the Pacific in the 1940s and 1950s. Many people suffer from A. exotic diseases B. plankton overgrowth C. genetic abnormalities D. biodiversity
Answer:
C
Explanation:
Many People Suffer from genetic abnormalities as a result of the nuclear tests carried out in the Pacific in the 1940s and 1950s. Thus, option C is correct.
What are nuclear tests?An imaging examination called a nuclear stress test demonstrates how blood flows to a heart both at rest and when exercising. It employs a tracker, also known as a radioactive tracer, which is a minimal bit or radioactive substance.
They chose this region because it had a tiny area that would only be affected by irradiation to a limited minority of participants multitudes. Southern Utah was covered by the bomb test debris.
Also with the radioactivity, there were various abnormalities that were found with the help of the test that was done on the person who was present there. Therefore, option C is correct.
Learn more about nuclear tests, here:
https://brainly.com/question/4372006
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True or false? An intrusion
is always younger than
a fault.
True
False
Notre Dame Cathedral located in Paris, France is most closely associated with-
A) Hinduism
B) Judaism
C) Buddhism
D) Christianity
Answer:
D) Christianity
Explanation:
I know it may be a lot its ok if u answer part of it
What is climate change?
Explain how global warmings occurs.
Give the name of two (2) Greenhouse gases
Explain how climate change impacts plants, animals, weather, agriculture and people. 5 Points
What are some things you can do to reduce global warming and climate change?
Answer:
What is climate change?
Is the conversion of the current climate to a new climate due to geographic factors.
Explain how global warmings occurs.
When the gases like carbon monoxide reach the ozone layer, they react with the ozone gases hence fading away the layer, hence letting direct sunlight onto Earth's surface resulting to warming known as global warming.
Give the name of two (2) Greenhouse gases
- Carbon dioxide ( CO2 )
- Ozone gas ( O3 )
What are some things you can do to reduce global warming and climate change?
Fighting against pollution e.g the carbon monoxide gases released by industries, cars
Encouraging aforestation and re aforestration to maintain the climate
Answer:
1. Climate change is a change in the average conditions such as temperature and rainfall
2. Global warming occurs when carbon dioxide and other air pollutants and greenhouse gases collect in the atmosphere it absorbs sunlight and solar radiation that has bounced off the earth's surfaces.
3. Carbon Dioxide, and Nitrous Oxide
4. When temperatures get warmer, plants are start to grow and bloom in the spring and survive longer into the fall. Some animals are waking from hibernation sooner or migrating at different times
5. Power your home with renewable energy, reduce waste
.. What event was responsible for the first population explosion? (1 point)
a the Industrial Revolution
b the invention of fire
c the Agricultural Revolution
d the development of cities
Answer:
the industrial revolution
Explanation:
I hope this helps
What environment do radish seeds need for growth
Answer:
For the most part radish seed growth is best when they are planted in cool soil; early spring or fall are the preferred seasons for many varieties. Next, be sure to get the soil in good shape before planting – loose, full of seasoned organic material, but not overly fertile. Moisture and soil depth must be right, too.
true or false: the steepest slope on Rock Mountain is to the south?
Answer:
false.
Explanation:
I searched it
Which landforms were most likely created by the eruption of
volcanoes?
A. deltas
B. plains
C. mountains
D. canyons
Answer:
B plains is the answer
Explanation:
Plains may have been formed from flowing lava, deposited by water, ice, wind, or formed by erosion by these agents from hills and mountains. Plains would generally be under the grassland (temperate or subtropical), steppe (semi-arid), savannah (tropical) or tundra (polar) biomes
i need help pls
thank you :)
Answer:
X = 22°
Y = 50°
Z = 108°
Explanation:
Given :
From the diagram shown :
The diagram shows a parallelogram with sides of parallel and equal length.
Z = 108° (opposite angles are congruent)
X = 22° (Alternate angles)
To get Y:
108° + 22° + y = 180° (sum of angles in a triangle)
130° + y = 180°
y = 180° - 130°
y = 50°
Hence,
X = 22°
Y = 50°
Z = 108°
Briefly describe the characteristics of the four main layers of Earth. Include temperatures.
Answer:
Crust
The crust is the first layer of the earth. It is split up into two parts the continental crust, and the oceanic crust. The oceanic crust takes up 71% of the earths crust, and the other 29% of the crust is continental. The continental is made up of igneous rocks, and the oceanic crust is made up of sedimentary and basalt rocks. The continental crust is older than the oceanic crust, some of the rocks are 3.9 billion years old. The density average of the oceanic crust is 3g/cm. The average density of the continental earth is 2.7g/cm. The temperature of the crust is around 200-400 degrees celsius. The crust is about 60 km thick under a continent and 5 km thick under the ocean. The crust is constantly moving. The crust doesn't even make up 1% of the earth! The crust is the layer were tectonic plates can be found.
Mantle
The mantle is the second layer of the earth. It is split up into two different parts, the lithosphere (which is the top part) and the asthenosphere (which is the bottom part). The lithosphere is a dense rock made out of iron and nickel, the asthenosphere is a plastic like fluid. The temperature of the lithosphere is around 300 to 500 degrees celsius, and the asthenosphere is around 4500 degrees celsius. The mantle has the biggest volume of all the layers, the volume of it is 84% of the earth. It is 1,800 miles deep or 2,900 kilometers deep. In the mantle are convection currents which make the mantle move. The lower mantle heats up and rises and cools down then gets pushed down because it is heavier. Then I keeps going on like that. The mantle grows a meter a year.
Lithosphere
The lithosphere is the top layer of the mantle. The lithosphere includes having the crust in it. It is a cooler layer because it is farther from the inner core. The lithosphere is a dense rock made out of iron and nickel. The temperature of the lithosphere is 300-500 degrees celsius. Inside the lithosphere and asthenosphere are currents, called convection currents. They make the lithosphere and asthenosphere turn round and round. So because the lithosphere is denser it is being forced down closer to the core and then heats up then forces its way back up to the top because it is less dense.
Asthenosphere
The asthenosphere is the bottom layer of the mantle. It is a plastic like liquid made up of iron and nickel. The temperature of the asthenospere is 4500 degrees celsius. It is hotter than the lithosphere because it is closer to the inner core. Inside the asthenosphere and lithosphere are currents, they are called convection currents. So because the asthenosphere is less dense or lighter than the lithosphere is forces its way up to the top and foces the lithosphere down. It then cools down then gets forced back down by a hotter substance
Convection Currents
Convection Currents happen in the Mantle. They go through bot the lithosphere and the asthenosphere. They make them move round and round. Since the asthenosphere is hotter, that makes it lighter or less dense, so it forces its way to the top. Meanwhile it is forcing the lithosphere to go down and take it's place, So the asthenosphere that moved up and cooled down, and the lithosphere that got forced down is heating up and then when it gets hot ebough it will force its way to the top and the whole cycle will start again. But these convection currents effect the earth and the tectonic plates. Because when the plates, say...... overlap one gets pushed under the other, and it would get pushed don to the convection currents, and because it is a dense material it would be forced down and it would melt and make a new crust. In the photo below that diagram would acctually be going on inside of the earth at this very moment!
Outer core
The outer core is a liquid made up of iron and nickel. The temperature of the outer core is around 4400 degrees celsius. The depth of the outer core is 2, 890. This is one of the three layers that is putting pressure on the inner core. It is the second hottest layer, because it is the layer above the inner core, and it is the second farthest from the surface of the earth. Also it is said that the core is rotating faster than the rest of the earth but...... slower than previously believed! the outer core was discovered in 1936 by seismologist, Inge Lehmann.
Inner core
The Inner crust is the second thinnest layer. The inner core is hotter than the surface of the sun. The inner core is made out of iron and nickel. It is 5159 to 6378 km thick. The inner core is extremely hot and is the last layer. The inner core is 5505 degrees celsius. It is a solid because of all the pressure from the other layers putting there weight onto this layer. The inner core grows. The core was discovered in 1971..
Explanation:
the first person who gets this right gets a brain and 14 points and I can even do one of urs too
Answer:
Soo yh that's my answer
Explanation:
looked at some maps
50 points!! the species of fish that inhabit the Grand Banks rely upon what for their food supply?
A.)herring
B.)cod
C.)flatfish
D.)plankton
Answer:Plankton
Explanation:
Answer:
Plankton
Explanation:
Plankton are the diverse collection of organisms found in water that are unable to propel themselves against a current. The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales
it's easy
anyone know the answer
Answer:
A. TrueExplanation:
I hope it helps ❤❤Answer:
true...
Explanation:
Hiiii Army hehe
____ is unique in that it has territory in both North Africa and Southwest Asia.
A.) Egypt
B.) Sudan
C.) Mali
D.) Algeria
Answer:
egypt
Explanation:
List 2 examples of totalitarian regimes.
Answer:
The Soviet Union under Joseph Stalin and The People's Republic of China with Mao Zedong
Explanation:
It's on Britannica
How do the inner and outer cores differ?
A. The inner core is liquid and the outer is solid
B. The inner core is metal and the outer is rock
C. The inner core is rock and the outer is metal
D. The inner is solid and the outer is liquid
Answer:
D.
Explanation:
The inner core is only solid due to the immense amount of force and pressure on it while the outer core is liquid because the pressure isn't high enough to keep it solid.