Radiation means ‘energy that is transported from one spot to another without the need of direct contact between the two locations’, Light in each carries a different amount of energy, this is what we call electromagnetic radiation or electromagnetic waves. Gamma rays are the most energetic, and radio is the least.

<em>In order from longest to shortes wavelenghts we have:</em>

Radio waves: they are made by various types of transmitters, given off by stars, sparks, and lightning, they have the lowest frequencies (longest wavelenghts) in the electromagnetic spectrum and are used mainly for communications.

Microwaves: they are extremely high-frequency radio waves (Their wavelength is usually a couple of centimeters) made by various types of transmitters.

Infra-red waves: they are just below visible red light in the electromagnetic spectrum, they're given off by hot objects.
Visible lights is the tiny part of the electromagnetic spectrum our eyes can detect.
Ultra-Violet: this light is given off by the Sun in large quantities. We call it "UV" for short and can also be used to kill microbes.
X-rays: they are very high-frequency waves that carry a lot of energy. They will pass through most substances, and this makes them useful in medicine and industry to see inside things.
Gamma rays: they are given off by stars and by some radioactive substances. They are extremely high-frequency waves (the shortest wavelength) and carry a large amount of energy. They pass through most materials.

In the image, I annexed you can see the electromagnetic spectrum with the type of radiations from the shortest to the longest wavelengths.

I hope you find this information useful and interesting! Good luck!

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2 years ago

What effect did the bubonic plague have on European feudalism?

Sav [38]

Bubonic plague effected on European feudalism as it hastened feudalism's decline due to the system's reliance on peasant labor.

Answer: Option A

<u>Explanation: </u>

Bubonic Plague was an epidemic disease which had spread in Europe in 14th century and resulted in the death of 30-60% of European population. This deadly disease has also resulted in the decline of Feudalism.

The system of feudalism largely dependent of the peasants or labourers which were known as serfs who were employed by the knights and worked under the barons( who worked for the kings).

The Black death or the plague had affected the peasants the most hence breaking the system as the now there was great shortage of labour.

8 0

2 years ago

En qué espacios se realizan las actividades secundarias y terciarias: urbanos o rurales?

Anna11 [10]

Answer:

El espacio rural se compone de áreas no urbanas. Son espacios no ocupados por ciudades o densidades de población. La mayoría de las actividades productivas propias de este espacio están relacionadas con la agricultura, la ganadería y la extracción.

Explanation

Para comprender mejor el alcance conceptual que envuelve el espacio rural, es necesario distinguir las expresiones rural y agraria. Las actividades en las zonas rurales no siempre son agrarias. Cada vez es más común utilizar el campo para actividades turísticas, deportivas, áreas de preservación ambiental, balnearios, clínicas, centros de investigación, entre otros, que no están vinculados a actividades agrarias.:

4 0

2 years ago