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guajiro [1.7K]
3 years ago
5

X-rays _____. were discovered by accident have no uses today reduced infection after surgery were invented by the British Army

History
2 answers:
NNADVOKAT [17]3 years ago
6 0
X-rays were were discovered by accident in 1895when Rontgen was working with cathode ray waves.
lyudmila [28]3 years ago
5 0

The correct answer is A. were discovered by accident

Explanation:

X-rays are a type of radiation mainly used for medical uses as this radiation allow doctors to create images of inner structures that are helpful for diagnosis, also, X-rays are used as part of radiotherapy to treat cancer. Additionally, X-rays were discovered in 1895 by Wilhelm Rontgen who discovered them by accident as he studied electrical discharge tubes and noticed there was an unknown or "x" type of radiation, based on this, he described X-rays and even use them to create an image of his hand. Thus, the answer is X-rays were discovered by accident.

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There was little economic growth in Europe after the fall of the Roman Empire , during the Middle Ages, but (mention the crusade
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Although the Crusades are popularly viewed as religiously inspired campaigns to recapture the Holy Land, students should recognize them as a result of the social and economic events in Europe between 1000 and 1200. Religious and secular leaders seeking to end the fighting among feudal lords seized upon the Crusades as a means of redirecting that aggression. Feudal knights who would not be inheriting their family properties eagerly enlisted in the Crusades as a way to win wealth or status. The idea of the pilgrimage was a powerful one, and the Crusades were basically armed pilgrimages to the Holy Land. The various Crusades ultimately failed. The sack of Constantinople was a fitting denouement to the whole concept. The interaction with the East brought to Europe not only Arabic translations of Greek texts, but also original Arabic and Iranian scientific and philosophical works.


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3 years ago
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How did the Tokugawa Shagunate stabilize Japan
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Answer:

The Tokugawa government adapted a social order called “the four divisions of society” that stabilized the country. This system was based on the ideas of Confucianism that spread to Japan from China. Society was composed of samurai, farming peasants, artisans, and merchants.

Explanation:

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4 years ago
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Elodia [21]

First one: Flat like a map

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The industrial revolution created two new social classes. what were they?
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Why should we have a good understanding of the environment? People migrate based on environmental conditions. People get food an
tino4ka555 [31]

Answer:

People get food and water from the environment.

Explanation:

Given the options above, the right answer on why we should study our environment is that: "People get food and water from the environment." This is because, it is the food and water that sustain life. It is the primary basic needs of human. Understanding the food that human can consume without taking poison and understanding the kind of water that is potable and clean for human consumption is also essential to human survival.

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