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The ionosphere. To clarify, only the low-frequency radio waves incorrectly called "high-frequency" or "HF" of about 50MHz and below are reflected. "Very High Frequency" VHF signals are not reflected, but go straight off into space.

For example, in the "AM" commercial broadcast spectrum, the transmission is reflected back to the Earth and is receivable for great distances, a phenomenon that used to be called "skip". AM signals are in the band of 550KHZ to 1.6 MHz. "FM" stations in the band from 88MHz to 108MHz are only received by "Line of sight" transmissions.

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11y ago
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11y ago

The thermosphere does, also known as the ionosphere.

When the sun's particles hit these charged ions, the aurora borealis occurs.

The ionosphere is above the mesosphere and below the exosphere.

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9y ago

Aurora borealis occurs in the layer of the atmosphere called the Thermosphere. Ionized particles from the sun are drawn to the magnetic poles of Earth, which gives us the spectacular Northern Lights.

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17y ago

The ionosphere is filled with electronically charged particles.

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12y ago

Ionosphere is the layer filled with electricity charged ions.

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15y ago

The Ionosphere

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13y ago

Ionosphere

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4y ago

Where are ions found in the atmosphere? How are ions formed?

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4y ago

wrong

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Q: What layer is hit by the sun's ultraviolet rays and cause the air particles to become electrically charged?
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What is a kid friendly definition of ionosphere?

The ionosphere is the part of the earth's atmosphere (the layers of gases that surround the earth and stay there because of the earth's gravity) where sunrays are able to ionize some of the gas substance. This means that the gas substances, because of the high amounts of energy in the sunrays hitting them, lose or gain electrically charged particles (such as electrons, the tiny charged particles orbiting the atom core, or ions, larger, electrically charged particles) and themselves become electrically charged. Electrical charge is responsible for the fundamental force of physics called electromagnetism, which is what creates magnetism and electricity. Because of this electromagnetism in the ionosphere, when large bursts of sunrays hit the atmosphere from time to time the amazing northern lights and southern lights, the auroras, become visible in the far north and far south of our planet.


In which layer of the atmosphere do the Auroras occur?

In the upper mesosphere and the lower thermosphere, gas particles become electrically charged. Because these charged particles are called ions, this part of the thermosphere is called the ionosphere. In polar regions these ions radiate energy as shimmering lights called auroras, usually in latitudes above 50 degrees. The Aurora Borealis and its southern counterpart the Aurora Australis are formed high in the atmosphere in the ionosphere, which is sometimes considered as part of the thermosphere, the outermost actual atmosphere. Above this layer, the exosphere has so few molecules that they can escape into space. For more information visit the question "What causes the Aurora Borealis?"


What forms when millions of water droplets become suspended in air and collect around small dust particles?

Clouds


The danger of ultraviolet radiation?

It is simple the ozone layer pertects some of the ultraviolet radiation that comes from the sun if you are exposed to much of the sun you can get skin cancer that is the danger of ultraviolet radiation


Are clouds living things why or why not?

No, of course clouds aren't living things! That would be like calling a rock a living thing. Clouds are made up of tiny water particles that are lighter than air, making them float up in the sky. When clouds get big enough (become a storm cloud), the weight of all those water particles together make rain. And little water particles aren't actually living things, are they now? So thats why clouds are NOT living things.

Related questions

What is composed of charged particles?

A compound composed of charged particles is called an ionic compound. An atom that has become electrically charged is called an ion.


Where does gas particles become electrically charged?

By gas particles I suppose you mean gas molecules? These become charged when ionized, when an electron is stripped off.


What is the name for the lower portion of the thermosphere where particles become electrically charged?

Extending thru both thermosphere & exosphere is ionosphere, named for its concentrated layers of electrically charged particles.


Can suspensions become electrically charged?

As a suspension is a substance suspended in another medium,it is possible that the substance in it could become electrically charged. eg,flour in air is a suspension,if for example this was moved at high speed through a ventilation system,it would generate static electricity from electron loss (or gain) as the particles collided with the pipework etc.This would cause the flour to become charged,but not the suspension as a whole. I woulds therefore say it is possible for the PARTICLES in a suspension to become electrically charged.


How do particles become charged?

particles become charged when they either gain or lose electrons.


How can materials become electrically charged?

Material can become electrically charged when two different material are brought into close contact, some of the electrons move from one material to another.


What state of matter is made up of particles that have broken apart?

The answer to this question is Plasma. Plasma is the special state of matter in which atoms are broken down into charged particles. A good reference would be the sun. ~Kazuku-Nakamaru


If you rub a polythene rod with a cloth will it become magnetic?

No, it will not become magnetic. It will become electrically charged.


When do atoms become electrically charged?

A neutral atom, in order to be neutral, has the same number of protons and electrons. If the atom gains or loses an electron, or more than one, it will become electrically charged.


What kind of materials become electrically charged when they are rubbed together?

Insulators


What is an atom or group of atoms that become electrically charged?

IONS OS ION ^^A charged atom is called an ion


Why is uranium electrically neutral?

Any atom is neutral in the normal state.After loss or gain of electrons an atom become electrically charged.