GEOGRAPHY MIDDLE SCHOOL

Which continent was once joined to greenland

Answers

Answer 1
Answer: North AmericaGreenland History.
Greenland (about 80% ice covered) is the world's largest (non-continent) island, and it dominates the North Atlantic Ocean between North America and Europe It is geographically considered part of the North American continent.

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What's the longest river in the world?

Answers

The longest River in the world is the Nile River followed by the Amazon River. Although there are some misconceptions that the longest river is the Amazon river. However the exact answer to your question suppose to be the Nile and Amazon river........but here is what we know:


Earth owns few very great rivers, each of which has long plus acknowledged antiquities. The Amazon, Mississippi, Euphrates, Yangtze, and The Nile ought to perform enormous positions during the growth and metamorphosis of individual civilizations. Tributaries related to the Danube, Seine, Volga, and The Thames remain fundamental to the nature of some of our various influential municipalities.

Although, meanwhile it comes to the name of whichever river is longest, Nile river gets the top ranking. Approximately 6,583 km long, also tapping near a range of 3,349,000 square kilometers, that is the longest river within the world and indeed the longest river in the Cosmic System. It crisscrosses global limits, its liquid is distributed by 11 African countries, and it is capable for the one of the most numerous and longest-lasting cultures in the world.
The longest river in the world is the Nile River is Africa which 4,258 miles long (6,853 km).

What is the primary reason why the Middle Kingdom of Assyria was established in this location ?

Answers

The main reason why is because of Global Trade.

PLEASE HELP I WILL AWARD YOU WITH 60 POINTS!!!when the wavelength of spectral lines emitted from an object increases, which end of the visible light spectrum does it move toward, and what is the object's motion relative to earth?

Answers

Increasing wavelength is an indication of a Doppler shift caused by an object moving away from the viewer. Longer wavelengths (of the visible spectrum) are redder, shorter wavelengths are bluer. Objects moving away from you have a red shift, objects moving toward you have a blue shift.


Final answer:

An increase in the spectral line's wavelength causes it to move towards the red end of the visible light spectrum, signaling that the object is moving away from the observer. This phenomenon is known as redshift in the Doppler effect.

Explanation:

When the wavelength of spectral lines emitted from an object increases, it moves towards the red end of the visible light spectrum, which illustrates a concept known as redshift. This is a result of the object's motion relative to Earth. If the object is moving away from us, the light's wavelength appears longer, causing a shift towards the red end of the spectrum. This phenomenon is a manifestation of the Doppler effect, originally explained by Christian Doppler in 1842.

This principle can be used in astronomy to deduce the motion of stars and galaxies relative to us. For instance, if a star's spectral lines shift towards the red end of the spectrum, we can infer that the star is moving away from us. Conversely, if the lines shift towards the blue end, this suggests that the star is moving towards us.

Learn more about Doppler effect and redshift here:

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What industry is agriculture ?

Answers

agriculture is thecultivation of land and breeding of animals and plants to provide food, fiber,medicinal plantsand other products to sustain and enhance life.
Agriculture, It is a primary industry
They rare crops and feed animals and produce foood and other products in which they give to the other industries

Who discovered the mid ocean ridge ⚓️

Answers

The person that discovered the mid ocean ridge was Alfred Wegener. He also discovered Pangaea. He made the theory of Continental drift.
Alfred Wegener was the first man to discover the mid-ocean ridge and to come up with the concept of seafloor spreading. He did this by pointing a SONAR machine towards the bottom of the ocean instead of forward and it recorded the different heights of the seafloor.

By what processes can a volcanic eruption affect temperature around the world

Answers

world-wide affects of volcanic eruptions only happens when there are large explosive eruptions that throw material into the stratosphere. If it only gets into the troposphere it gets flushed out by rain. 
the size of the particles (again mostly droplets of sulfuric acid) If they are big then they let sunlight in but don’t let heat radiated from the Earth’s surface out, and the net result is a warmer Earth (the famous Greenhouse effect). If the particles are smaller than about 2 microns then they block some of the incoming energy from the Sun and the Earth cools off a little. That seems to have been the effect of the Pinatubo eruption where about a 1/2 degree of cooling was noticed around the world. Of course that doesn’t just mean that things are cooler, but there are all kinds of effects on the wind circulation and where storms occur. 
even more controversial connection involves whether or not volcanic activity on the East Pacific Rise (a mid-ocean spreading center) can cause warmer water at the surface of the East Pacific, and in that way generate an El Nino. Dr. Dan Walker here at the University of Hawai’i has noticed a strong correlation between seismic activity on the East Pacific Rise (which he presumes indicates an eruption) and El Nino cycles over the past ~25 years. 
volcanism produces about 5X10^11 kg of CO2 per year about 3% of the total CO2 with the other 97% produced by humans. 
hence, volcano have more affect on weather near area it erupts.
world-wide affects of volcanic eruptions only happens when there are large explosive eruptions that throw material into the stratosphere. If it only gets into the troposphere it gets flushed out by rain. 
the size of the particles (again mostly droplets of sulfuric acid) If they are big then they let sunlight in but don’t let heat radiated from the Earth’s surface out, and the net result is a warmer Earth (the famous Greenhouse effect). If the particles are smaller than about 2 microns then they block some of the incoming energy from the Sun and the Earth cools off a little. That seems to have been the effect of the Pinatubo eruption where about a 1/2 degree of cooling was noticed around the world. Of course that doesn’t just mean that things are cooler, but there are all kinds of effects on the wind circulation and where storms occur. 
even more controversial connection involves whether or not volcanic activity on the East Pacific Rise (a mid-ocean spreading center) can cause warmer water at the surface of the East Pacific, and in that way generate an El Nino. Dr. Dan Walker here at the University of Hawai’i has noticed a strong correlation between seismic activity on the East Pacific Rise (which he presumes indicates an eruption) and El Nino cycles over the past ~25 years. 
volcanism produces about 5X10^11 kg of CO2 per year about 3% of the total CO2 with the other 97% produced by humans. 
hence, volcano have more affect on weather near area it erupts.
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