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nata0808 [166]
3 years ago
12

Astronomers want to make maps of the sky showing sources of X-rays or gamma rays. Explain why those X-rays and gamma rays must b

e observed from above Earth’s atmosphere.
Geography
1 answer:
natta225 [31]3 years ago
4 0

Answer:

Astronomers place telescopes above to observe radiation from those parts of the electromagnetic spectrum for which the atmosphere would normally absorb or significantly scatter that radiation. This includes UV, X-ray, gamma ray, and infrared.

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Officially there are three countries that compose Scandinavia, Norway, Sweden, and Denmark. Occasionally, Finland, Iceland, Faeroe Islands, and Aaland Islands are included, but that is only for local usage.

Out of the three countries, the one that has the biggest elevation is Norway, with Sweden coming as second, and Denmark having the lowest elevation. Norway's average elevation is 460 m. Sweden's average elevation is 320 m. Denmark's average elevation is only 34 m, making it the fifth joint lowest country in the world.

Norway has the highest elevation out of the three because the around half of the country is dominated by mountains, while Sweden also has mountains, it is mostly dominated by lowlands, and Denmark is entirely very low, lacking a single mountain or even a higher hill on its territory.

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