Answer:
Scientific knowledge is developed when people make observations about the natural world. An observation may generate a scientific question, which may lead to a hypothesis. The hypothesis can be tested through experimentation. The results of the experimentation may lead to changes in scientific knowledge.
Explanation:
What does an atom's nucleus contain ?
Answer:
If contains neutrons, which have no charge . Protons which have a positive charge and electrons wh h have a negative charge . These are all called subatomic particles .
Explanation:
Hope it helps out !Answers:
Nucleus contains proton and neutrons.
Explanation:
It is the small, dense part consisting of protons and neutrons at the middle of an atom.
Hope it helps.
According to some scientists, which is a cause of global warming?
decrease of nitrous oxide
increase in cloud cover
decrease of methane gas
increase in carbon dioxide
According to some scientists, increases in carbon dioxide levels are a cause of global warming
There are different reasons for global warming. According to some scientists, increases in carbon dioxide levels are the cause of global warming.
How does carbon dioxide cause global warming?Due to CO2 and other greenhouse gases effect, there is global warming. This is mostly when CO2 is soaks up by infrared energy, it is said to vibrates and re-emits the infrared energy back in all directions.
Note that almost half of that energy goes out into space, and also an approximate of the same half of it returns to Earth as heat, thereby leading to the 'greenhouse effect. '
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Which contemporary event may have inspired a large number of books on international terrorism? A. Hurricane Katrina B. founding of the European Union C. the September 11 attacks D. US presidential elections
Answer:
September 11 attacks
Explanation:
What is the impact of cobalt mining in the congo?
Will give brainliest if your answer is good! Also please include as much detail as possible thank you :)
Our Winter Solstice occurs when the sun's rays directly hit the
Answer:
I believe it's the Tropic of Capricorn
Answer:
The winter solstice denotes the most limited day and longest night of the year. In the Northern Hemisphere, it happens when the sun is legitimately over the Tropic of Capricorn, south of the equator and goes through Australia, Chile, southern Brazil, and northern South Africa.
Throughout the winter solstice, the Sun sparkles most straightforwardly on the Tropic of Capricorn, 23.5 degrees south of the equator, giving its most immediate on vitality Earth toward the Southern Hemisphere.
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Scientists find trilobites during a routine dig. Trilobites were common in the Paleozoic Era (540 to 245 million years ago) and went extinct during the late Permian period (248 million years ago). On another site, the scientists find ammonites. Ammonites lived during the Mesozoic Era (245 to 65 million years ago) and are not found after that period. What can be concluded about the rock layers? Choose all that apply.
A The rock layers must have formed at the same time because they both contain biozones.
B The rock layer containing the trilobites must have formed before the one containing the ammonites.
C The rock layer containing the trilobites must have formed after the one containing the ammonites.
D The rock layers must have formed at different times because they contain two different biozones.
Answer:
A and C
Explanation:
The rock layers must have formed at different times because they contain two different biozones. The rock layer containing the trilobites must have formed before the one containing the ammonites. The key thing to note here is that the Trilobites only lived from 540 to 248 million years ago. And that the Ammonites were from 245 to 65 million years ago. So there's a 3 million year gap between these 2 different creatures where neither of them existed. So the dig where the trilobites were found has to be at least 3 million years older than the dig where the Ammonites were found. So with that in mind, let's look at the options and see what makes sense.
The rock layers must have formed at the same time because they both contain biozones. * This is nonsense no matter what dates you're speaking of. In effect it claims that all rocks that indicate life were created at the same time. So this is definitely a bad choice.
The rock layers must have formed at different times because they contain two different biozones. * This is technically incorrect since it assumes that all biozones represent an unique period of time which is incorrect. However, since the biozones represented by the presence of Trilobites and Ammonites don't overlap, it is true that these these rock layers were formed at different times. I would have preferred if this option said "non overlapping biozones". But on the balance, I'd consider this option to be true, so it should be selected.
The rock layer containing the trilobites must have formed before the one containing the ammonites. * This is definitely true since the last Trilobite died about 3 million years before the first Ammonite lived. So this is a correct choice.
The rock layer containing the trilobites must have formed after the one containing the ammonites.
* This is the opposite of the previous option. And since the previous option was true, this option must be false. So this is a bad choice
What effect do forest fires have on the biodiversity of an ecosystem
Explanation:
Forest fires make it harder for plants and animals in an ecosystem to grow, this causes a variety of plants in an ecosystem to become extinct in that area, animals have a hard time living in an ecosystem like this and that is why it is harder for biodiversity in an ecosystem happens.
-Hope my answer is helpful!
According to the map the trade route between ancient Egypt and the Indus Valley was approximately
Answer:
7 miles away
Explanation:
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in this fictional map which elements suggest absolute location
Answer:
Wheres the map?
Explanation:
Help on this and write the 3 of the types of subsistence agriculture
Answer:
1.
2.
hope this helped you
BRAINLIEST!! ANSWER PLZ
7. Why have the gas giants failed to collapse into stars?
A. They spin very quickly on their axes.
B. They orbit the sun with retrograde motion.
C. They orbit the sun with prograde motion.
D. They spin very slowly on their axes.
Answer:
A. They spin very quickly on their axes
Explanation:
Penn Foster
Answer:
A. They spin very quickly on their axes.
Explanation:
The gas giants spin very quickly, creating a strong centrifugal force. This strong centrifugal force prevents them from collapsing under gravity.
#pennfoster
Please help me correct answer gets brainiest
mount dinali: north hemisphere | north america | united states | 63.0692° N, 1 51.0070° W
kgalagadi park: southern hemisphere | Africa | South Africa | 26.4724° S, 20.6117° E
Bondi bay: southern hemisphere | Australia | Australia| 33.8986° S, 151.2765°
layout: hemisphere/continent/country/coordinantes
the layout is just like it is in the graph
Which is the best estimated pressure, represented in units of GPa, of the lower mantle? 110 GPa 220 GPa 305 GPa 360 GPa
The correct answer is A. 110GPa
Explanation:
Pressure refers to a force applied to a surface or object either by another object or factors such as the atmosphere. This is calculated considering the force applied and the area. Additionally, this factor can be measured using the unit gigapascals (GPa), which is more common in geography and related areas.
In this context, the lower mantle, which is the layer below the upper mantle has a pressure between 24GPa and 130GPa; and this is a high pressure if compared to the pressure in the surface. Thus, the estimated pressure in this zone is 110GPa because this is the only number that is between the range of pressure in this zone, while others show a higher pressure that is not found in this layer.
Answer:110 GPa
Explanation: I took the quiz
1. Which phase of the Moon will be seen from the Earth at
position 5?
Which processes produced heat that contributed to the formation of Earth's different layers? Check all that apply.
collision of materials
compaction of materials
cooling of low-density metals
radioactive decay
sinking of high-density metals
Answer:
a, b and d
Explanation:
it was correct on edge
The processes which produce heat that contributed to the formation of Earth's different layers include the collision of materials, compaction of materials, and radioactive activity.
There are three different layers that make up the Earth which are the mantle, the crust and the core. They are made of solid rock which is usually granite and basalt.The radioactive decay of the elements that are in the Earth's crust releases heat energy. It should be noted that about fifty percent of the internal heat that comes from the Earth is through radioactive decay.In conclusion, the correct options are A, B and D.
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Explain why the rapid growth of megacities such as those shown in the figure may cause social challenges. (4pts)
Answer:
Uh Hello mate
Explanation:
The rapid growth of megacity populations result in significant challenges in accomodating people. homelessles, squatting and slum areas are all common place. Slums often form in the least desirable places. Megacities are well know for containing slums, areas of makeshift or substandard housing.
Who developed a heliocentric model with elliptical orbits?
Overall mineral crystal size depends on how fast a solution
O A. warms
O B. sinks
O C. cools
O D. rises
Answer:
C. cools
Explanation:
What are some advantages to an oligarchic form of government?
Answer:
Power is centralized within a leadership team, rather than involving everyone in every decision.
People can participate in activities, relationships, and work while the group in power handles the larger issues of the society.
An oligarchy strives to keep the status quo, which breeds conservatism instead of taking on risky ventures.
It can foster creativity and innovation because people are free from worries about running society.
Answer:
Oligarchy allows citizens to have the time to focus on their daily lives, more creative technologies to be created.
This is because oligarchy gives power to a group of experts which makes the government function properly .
Which must be true for metamorphism to occur?
A. The parent rock must be in liquid form.
B. The parent rock must be igneous.
C. The process must take place underground.
D. The grain size must become smaller.
The parent rock must be in liquid form, must be true for metamorphism to occur. Hence, option A is correct.
What is parent rock?Parent rock is the fundamental rock that something else was produced from. It is mostly applied in the context of soil formation, where the parent rock typically has a significant impact on the final soil's composition.
Sandstone, shale, and limestone fall within this category. Metamorphic rock is the last type of parent rock. Extreme heat or pressure have resulted in the formation of metamorphic rocks. As a result, igneous or sedimentary rock changes in composition.
Thus, option A is correct.
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Answer:
It's actually "The process must take place underground"
Explanation:
The previous answer is wrong as the rock must be solid not liquid. Also I got it right on the quiz so hopefully this helps.
When referring to the United States, “the South" is a
Answer:
Mostly states such as Alabama, Arkansas, Louisiana, Missouri, Georgia, Tennessee, Texas all of which are grouped in the south part of the United States.
Explanation:
Which of the following is true of compasses?
Answer:
A
Explanation:
How many branches of government did the Roman Republic have?
one
two
three
four
Tweaks
Answer:
3
Explanation:
The primary purpose of this map is to show
Africa
Uranium is a primary resource for countries.
Most of the diamonds found in Africa are mined in the
Coal is a primary resource for
Answer:
a
Explanation:
Fonts
How is a republic different from a direct democracy?
O A. In a republic, citizens have the freedom to make personal
decisions about their lives.
O B. In a republic, citizens can speak or print their opinions without fear
of punishment
c. In a republic, citizens gather in meeting halls where everyone can
vote on the laws.
O D. In a republic, citizens elect representatives to pass laws and make
decisions for them.
O Start a search
Ei
A republic is different from a direct democracy: In a republic, citizens elect representatives to pass laws and make decisions for them. Thus, option D is the correct option.
The way decisions are made is what distinguishes a republic from a direct democracy. In a direct democracy, decisions are made and legislation is voted on by the citizens themselves. This may entail events or meetings where everyone is given the chance to cast a vote on laws or policies.
On the other hand, under a republic, people choose representatives who act as their voice in government and enact laws. These officials are chosen through elections and given the power to speak for the interests of the people and make decisions in their place.
Thus, option D is the correct option.
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The local time in London is known as
A. London Time
B. Corrected Time
C. English Time
D. Greenwich Mean Time
What Are the (2) most important climatic factors for the Indian people?
Answer:
Latitudinal Location and Distance from the Ocean/Sea.
Explanation:
Latitudinal Location because it is the distance from the equator. The farther away from the equator you get, the hotter it gets, and vice versa.
Distance from the ocean/sea because the ocean/sea is a heat reservoir. It stores heat, and lets it out when its cool, therefore making places near the sea have either colder or warmer temperatures depending on the time of year.
Which best compares and contrasts how John Newlands and Dmitri Mendeleev organized elements?
Both Newlands and Mendeleev arranged elements according to their chemical properties, but only Newlands used a
mass as well.
O Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used cherr
properties as well
Both Newlands and Mendeleev organized elements into groups, but only Newlands used a table with rows and column
Both Newlands and Mendeleev organized elements into a table with rows and columns, but only Mendeleev named
different groups of elements.
The correct answer is B. Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical properties as well.
Explanation:
Both John Newlands and Dmitri Mendeleev were relevant chemists, mainly known for designing the period table, which organized chemical elements. In the case of Newlands, he designed his period table around 1865 by organizing the known elements based on the atomic masses of elements (number of protons and neutrons); also, he divided elements into groups.
On the other hand, Mendeleev designed his periodic table around 1869; in this, elements were also arranged by their atomic masses, but Mendeleev considered the properties of each element such as electronegativity, which implied some minor changes in order, as well as leaving some spaces for elements that had not been discovered, but that Mendelev could predict. Thus, the option that compares the organization in both periodic tables is B.
Answer:
B. Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical properties as well.
Hope it works!
Explanation:
Who said that earth rotated about its own tilted axis?
describe the difference in elevation and rock structure between a highland and a lowland
Answer:
High land is more eroded, lower land is less eroded.
Explanation:
highland has more erosion because the temperature is more on an extreme side, even though the rocks would be in well bigger pieces, in lowland there might be less elevation depending on the area, but the rocks would probably be a smaller size.