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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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How have the nations systems of mountains and waterways influenced the development of the united states
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The waterways and mountains of the United States, much like the rest of the world, have had a significant impact on where people settled and how towns and cities interacted with one another. Large mountain ranges served as natural barriers between groups, causing distinct regional shared cultures to develop due to the relative isolation and shared geography that mountain ranges create. The opposite is true for rivers, which connected communities through ease of travel, trade, and shared access to water and other natural resources.  

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Which of the following rates measures how many people are moving to a country?
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D) Migration Rate

Explanation:

I hope this helps :)

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Suppose we found a Terrestrial planet in the inner solar system with twice Earth's mass. Which of the following statements would
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2 years ago
Please please help me out now​
Anton [14]

An open lake is a lake where water constantly flows out under almost all climatic circumstances. Because water does not remain in an open lake for any length of time, open lakes are usually fresh water: dissolved solids do not accumulate. Open lakes form in areas where precipitation is greater than evaporation. Because most of the world's water is found in areas of highly effective rainfall, most lakes are open lakes whose water eventually reaches the sea. For instance, the Great Lakes' water flows into the St. Lawrence River and eventually the Atlantic Ocean.

In a closed lake (see endorheic drainage), no water flows out, and water which is not evaporated will remain in a closed lake indefinitely. This means that closed lakes are usually saline, though this salinity varies greatly from around three parts per thousand for most of the Caspian Sea to as much as 400 parts per thousand for the Dead Sea. Only the less salty closed lakes are able to sustain life, and it is completely different from that in rivers or freshwater open lakes. Closed lakes typically form in areas where evaporation is greater than rainfall, although most closed lakes actually obtain their water from a region with much higher precipitation than the area around the lake itself, which is often a depression of some sort.

Hope this helps :)

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Where does the energy that drives a tsunami come from?
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