modern humans first appeared about __ years ago

Answers

Answer 1
Seven million




Hope i helped
Answer 2

Answer:

200,000 years

Explanation:

Pretty sure that was the answer on a-p-e-x


Related Questions

If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would

Answers

Answer:

the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would If the Earth-Sun distance were doubled, the intensity of radiation from the Sun that reaches the Earth's surface would A. quadruple.N

Answer:

It would drop to 1/4

Because the sun would be farther away from the earth.

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How do the final two sentences of the section "The
Flow Of History" contribute to the article?

Answers

Answer:

History plays an important role in the development of a country. For example, the United States would be a different country today if France or Spain had ruled us instead of Great Britain. We might have a different form of government. ... When a country is involved in wars, it will impact the country.

please give brainliest

Explanation:

What is latitude and what is longitude *a simplified definition of both*

Answers

Answer:

Latitude is the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. (left to right)

longitude is the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.(up and down)

Explanation:

A ____ tax is a tax levied on the removal of natural resources (especially oil and gas) from the earth.

Answers

Answer:

A severance tax.

Explanation:

Why does the prime meridian pass through Greenwhich, England?

Answers

There is no really good reason. It could have been placed anywhere for reference of 0 degrees longitude, but at the conference it was decided that it would pass through Greenwich

Geography help me please

Answers

Answer:

Their citizens are primarily of Arab heritage.

Explanation:

The countries highlighted in Dark grey on the map are located on two continents, Asia and Africa. This rules out option B. The countries on this map also have ports on different bodies of water, even different oceans. And no one country borders all the countries in dark grey so D can also be ruled out. What these countries share is a majority Arab population and heritage. The Arabs are native peoples of Arabia, and moved into northern Africa during various Islamic conquests. They are now the dominant ethnic and cultural group in much of Northern Africa and Arabia, which are the regions shaded in Dark grey.

Consider the following actions for dealing with global climate change. Identify whether each represents adaptation or mitigation. a) Building up tall levees to stop the rising ocean from flooding a town. Adaptation Mitigation b) Rising the tax on gasoline. Adaptation Mitigation c) Giving a subsidy for people to buy hybrid cars. Adaptation Mitigation d) Giving a subsidy for people to buy air conditioners for their homes. Adaptation Mitigation

Answers

Answer:

Adaptation:

c) Giving a subsidy for people to buy hybrid cars.

d) Giving a subsidy for people to buy air conditioners for their homes.

Mitigation:

a) Building up tall levees to stop the rising ocean from flooding a town.

b) Rising the tax on gasoline.

Explanation:

Since the global climate change is ravaging the world, there is need to apply both adaptation method and mitigation method in-order to stop its effect on the world.

Simón Bolívar is best known for

A. leading the fight for independence from Spain in South America.
B. setting up dictatorships in South America following the collapse of Spanish rule.
C. redistributing land and oil wealth among people in South America.
D. launching paramilitary attacks against post-independence governments in South America.

Answers

Answer:

Simón Bolívar is best known for leading the fight for independence from Spain in South America.

Mount Shasta and Mount Lassen in the far northeastern part of California, were formed by what process

Answers

Answer:

Subduction.

Explanation:

Mount Shasta is a potentially active volcano in the southern end of the cascade range ad an has a height of 14,179 feet. Being a stratovolcano its a subduction process between the Juan de Fuca plate beneath the North American plate.  The Lassen peak is surrounded by an active volcano in the cascade range of the western united states and lies in the volcanic arc. This region is also affected by the Cascadia subduction zone.

"Normally, hurricanes that form over the tropical north Atlantic and tropical north Pacific Oceans are initially steered by the"

Answers

Answer:

Trade winds.

Explanation:

The global hurricanes are steered by the movement of the trade winds and they move from east to west in the tropics as the westerlies move in the opposite direction caused by the impact of the Coriolis force. Also, they are affected by the high-pressure systems.

If you were to examine the longitudinal profile of a typical river, you would probably find that the gradient is ________.

Answers

Answer:

steepest near the headwaters.

Explanation:

Stream Gradient is the slope-drop over distance. Stream gradient can be defined as a drop of stream in vertical line and falling over a horizontal distance.

The steam gradient, if we examine the longitudinal profile of a typical water, will be steepest near the headwaters. The stream gradient is steepest near the headwaters whereas gentle at the mouth. After the stream reaches at the mouth it gets discharged into another water body.

So, the correct answer is that the stream gradient is steepest near the headwaters.

The longitudinal profile of a typical river, we will find that the stream gradient is steepest near the headwaters.

What is stream gradient?

Stream Gradient is a slope drop by distance. Stream Gradient can be defined as the drop of stream in a vertical line and falling over a horizontal distance.

Steam gradient, if we examine the longitudinal profile of normal water, would be very dangerous near the river. The gradient of the stream rises sharply near the headwaters while it is soft in the mouth.

After the stream reaches the mouth it flows into another water source.

Thus, the correct answer is that the stream gradient is steepest near the headwaters.

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Discuss five
five of component of
a map​

Answers

Answer:

Title, a legend, a grid and a compass

Explanation:

The five components of a maps are a Title, a Legend, a Grid and a compass rose to indicate direction.

5. How were Earth's core and mantle formed?

Answers

Answer:

God created the earth Genesis chapters 1 - 2

MA has no unit of measurement.Why?​

Answers

Answer:

Mechanical advantage (also written as MA in formulas) is the factor by which a machine multiplies force. ... There is no unit for mechanical advantages since the unit for both input and output forces cancel out.

Scientist have been able to evaluate changes in ocean temperature profiles over more than 100 years by comparing modern instrument float records to data obtained during the:________

Answers

Answer:

HMS expedition challenger

Explanation:

The HMS expedition challenger was involved in ocean researches by scientists around 1870s. The research lasted about 1,000 days and the area covered was around 68,000 nautical miles. This research helped to shed more light on the activities going on in the marine environment.

Scientist evaluate changes in ocean temperature profiles over more than 100 years by comparing modern instrument float records to data obtained during the results gotten from the HMS expedition challenger.

whats is the advantages of sedimentary rocks

Answers

Answer:

They are important for: Earth history. Sedimentary rocks contain features that allow us to interpret ancient depositional environments, including the evolution of organisms and the environments they lived in, how climate has changed throughout Earth history, where and when faults were active, etc. Economic resources..

zeugen and yardang differences​

Answers

Answer:

Yardangs are formed on vertical strata while zeugen on horizontal strata. ... Yardangs are formed on vertical hard/soft layers of rock, while zeugen (this is its plural form) are formed on horizontal bands of hard/soft rocks giving it a more mushroom-like shape. The Great Sphinx of Giza has been sculpted in a yardang

which of the following statements about nationalism is false? A. nationalism is a unifying force that has resulted in the creation of multiple nation states. B. nationalism has been used as a force of murder and genocide. C. nationalism has caused many multi ethnic states to break apart. D. nationalism is no longer the powerful force that it was in the past

Answers

Answer:

m dos fenômenos sociais recentes mais problematizados pelas disciplinas das Ciências Sociais é o nacionalismo, bem como os movimentos oriundos deste. Isso não acontece por acaso, pois, afinal de contas, a nação à qual pertencemos é geralmente a primeira forma que utilizamos para nos identificar quando estamos em outro país, não é verdade? O nacionalismo, portanto, de forma resumida, seria o sentimento de pertencimento de um sujeito a um grupo tanto por proximidade quanto por vínculo racial, linguístico ou histórico. Assim sendo, trata-se de uma ideologia que exalta o Estado nacional ao qual pertence o indivíduo em detrimento da imagem do que é estrangeiro.

Não é por acaso que alguns dos movimentos sociais mais importantes do mundo atual sejam nacionalistas. Sua força de mobilização em torno de interesses do grupo representado pela ideia da nacionalidade é sempre grande justamente porque é grande o poder generalizador que a identidade nacional possui. Entretanto, para os autores Karl Marx e Max Weber, o nacionalismo seria um fenômeno altamente destrutivo e de alcance bastante limitado. Eles acreditavam que, com o crescimento das economias capitalistas e a consequente integração que esse sistema exigia, o sentimento nacionalista gradualmente deixaria de existir em função da priorização do lucro, o que estimularia uma integração cada vez maior a ponto de as barreiras nacionais tornarem-se apenas obstáculos no caminho do “progresso” econômico.

Embora Weber tenha dedicado grande parte de seus estudos para as questões da nacionalidade, nem mesmo ele conseguiu antever a dimensão que o nacionalismo tomaria em nosso mundo contemporâneo. O cenário geopolítico e econômico atual é a evidência que mostra o quão profunda é a influência do ideal nacionalista em nossa realidade. As disputas territoriais, embora não sejam de maneira alguma novidade, não mais se travam apenas no campo de batalha físico. O sentimento de união que a ideia de nação permite, ocasiona a confluência de grupos que se identificam com a mesma construção de nacionalidade. O resultado é que mesmo que não possuam o reconhecimento ou tenham perdido seu reconhecimento formal de Estado-nação dos outros países, ou tenham sido conquistados por forças estrangeiras, a identidade comum de uma nacionalidade, ou o sentimento de pertencer a uma nação, permanece. Exemplo disso são os conflitos que ainda se desenrolam entre Israel e Palestina, em que o último não é reconhecido como uma nação ou país legítimo por um grande número de países, mas sua população mesmo assim se mantém unida, reconhece-se e identifica-se com uma identidade nacional.

Explanation:

Hey There!!

The answer to this is: B.

Nationalism is an economic and political system that is characterized by promotion of the interest of a particular country with the aim of gaining or maintaining self governance over the groups' home land.

Nationalism has never been used as a force of murder and genocide.

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how will HIV & AIDS impact negatively to humans and the economy​

Answers

Answer:

HIV/AIDS affects economic growth by reducing the availability of human capital. Without proper prevention, nutrition, health care and medicine that is available in developing countries, large numbers of people are falling victim to AIDS.

As a wave approaches the shoreline and enters shallower water, energy and water move forward causing the water to rise and cascade down from the wave crest as a breaker. These waves are called

Answers

Waves of translation.

49. At 0900Z on the 24th, a tropical cyclone forecast/advisory contains the following information: FORECAST VALID 24/1800Z 21.9N 78.1W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 30NE 0SE 0SW 0NW 50 KT...100NE 100SE 30SW 30NW 34 KT...135NE 125SE 75SW 125NW What does this information tell you

Answers

It provides information about intensity as well as location.

This information provides information about where the tropical cyclone occurs and their intensity. With this information, we can evacuate people from those regions where this tropical cyclone causes more damage as well as preventive measures. In these readings, wind speed tells us the intensity of the tropical cyclone while on the other hand, the coordinates provides the information of location where this cyclone causes the impact.

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where is kalsubai peak????????​

Answers

Answer:

Kalsubai peak is situated in Maharashtra, India (south Asia) in Western Ghats.

→ You can see on the map that Kalsubai peak is marked with a red point.

As a fire rages through a forest, a large boulder is heated quickly. This rapid change in temperature causes the outer layer of the boulder to crack. weathering or erosion

Answers

Answer:

Weathering

Explanation:

Weathering because erosion is water or air hollowing or degrading rock.

Choose the true statement about water supply and demand:

a. One factor in the increased demand for water is the increased waste of water.
b. The amount of available clean water is increasing.
c. Only about 10% of the world’s population lives in areas where water is scarce.
d. Agriculture uses approximately half of all available freshwater on Earth.

Answers

Answer:

The true statement is No. c

Only about 10% of the world’s population lives in areas where water exists scarce is the correct statement about water supply and demand.

What  is supply and demand?

Supply in economics exists described as the total amount of a provided product or service a supplier offers to consumers at a provided period and a conveyed price level. It exists usually specified by market movement.

Demand exists in the quantity of a good that consumers stand willing and able to purchase at different prices during a provided period. The connection between price and quantity demand exists also named the demand curve.

supply and demand exist as an economic model of price decisions in a market. It postulates that holding all else equivalent, in a competitive market, the unit price for a certain good, or other traded item such as labor or liquid financial assets, will vary until it determines at a point where the quantity demanded (at the current price) will equal the quantity supplied (at the current price), resulting in an economic equilibrium for price and quantity transacted. It creates the theoretical foundation of modern economics.

Only about 10% of the world’s population lives in areas where water exists scarce is the correct statement about water supply and demand.

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Explain how the processes that create hot-spot volcanic chains differ from the processes that generate volcanic island arcs.

Answers

Answer:

Following are this difference to this question:

Explanation:

It is an interconnected tectonic plate for creating an island arc, in which sea plate sinks into the sea and some other, throughout the continental as well as oceanographic croutons a tourist hotspot volcanic eruption forms, in which lava explodes from its coat.  

These volcanos are often far from boundaries with plate lands, and All the types are restrained, however, the volcanic arches connect with the sea, whereas the island arches come into contact with the ocean.

The Milankovitch cycles describe the change in ________ because of changes in the ________ of Earth relative to the Sun.

Answers

Answer:

The Milankovitch cycles describe the change in eccentricity because of changes in the orientation of Earth relative to the Sun.

The Milankovitch cycles are those cycle that is described as the collective changes in the climate over thousands of years. Factors like axial tilt, eccentricity, precession index are some of the hypothesized variations.

Thus the cycle describes the changes in the way the earth orbits the sun. Due to the changes in the orbit of the earth related to the sun. Or the differential orbital position of the un in relation to the inclination. Natural global arming and cooling is considered to be initiated by these cycles.

Learn more about the Milankovitch cycles describe.

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According to the lecture, bauxite is very important to which of the following industries? A. jewelry B. shipbuilding C. electronics D. soda

Answers

Answer:

The answer is D. Soda

Explanation:

I took it on Edgunity 2020

According to the lecture, bauxite is very important to soda is the industries. Thus, option (d) is correct.

What is industries?

The term industries refer to the factory are the manufacturing of the product. The production of the goods making. The process of the raw material are the converted into the finished goods. The labour are the performing the work. The industry are the important part of the economy.

Bauxite is the sole and best material for producing aluminum metal. Bauxite is utilized in the chemical, abrasive, cement, petroleum, steel, and refractory brock industries. The mining of bauxite, the major raw material for soda, is the primary emphasis of the industry.

As a result, the bauxite is very important to soda is the industries. Therefore, option (d) is correct.

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During the ENSO cycle, in the Nino 3.4 monitoring region of the Equatorial Pacific, the typical sea surface temperature departure from normal is 6° C or more.

a. True
b. False

Answers

Answer:

b. False

Explanation:

During the ENSO cycle, in the Nino 3.4 monitoring region of the Equatorial Pacific, the variation in normal sea surface temperature is 3 ° C or less. This is because in the tropical pacific the surface water varies between 1 - 3ºC, which makes it impossible for the typical variation of the normal sea surface temperature to be 6 ° C or more.

To find relative location, first find a reference point. Question 4 options: True False

Answers

Answer:

  True

Explanation:

In general, "location" is always with respect to some reference. It isn't possible to specify a location without specifying the reference point first.

Answer:

TRUE

It is what's the first process that we needs to overcome.

Sort the following features or characteristics based on whether they are found in the littoral, neritic, or oceanic zone.
1.
a. beaches
b. continental shelves
c. dry during low tide
d. nutrients brought in by rivers
2.
a. majority of marine plants
b. coral reefs
c. tidal flats
3.
a. abyssal plains
b. deep sea trenches
c. water appears dark

Answers

Answer:

1. Neritic Zone

2. Littoral Zone

3. Oceanic Zone

Explanation:

Neritic zone is the region of shallow water approximately 200 meters in depth. The abundance of sunlight and nutrients in this zone, this is most productive zone of the ocean which supports marine life.

Littoral zone is the part of sea which is close to the shore. Organisms in this area are sponges, snails and crabs. It is low tidal zone which is around the shoreline. There aquatic vegetation in this area which is by man made lakes.

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