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Maurinko [17]
3 years ago
13

A scientist who studies the structure of the earth

Geography
1 answer:
Digiron [165]3 years ago
7 0

Geologist is a scientist who studies the structure of the earth.

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Definition of tundra​
Karo-lina-s [1.5K]
A vast, flat,treeless arctic region of Europe,Asia,&& North America in which the subsoil is permanently frozen.
5 0
3 years ago
What is the center of the earth called
pickupchik [31]

Answer:

the center of the earth is called the core

4 0
3 years ago
When analyzing the speeds of stars far from the galactic center, the orbital speeds of stars ___________ as distance increases f
KiRa [710]

Answer: is constant

Explanation:

In order to analyze the velocity of the stars within a galaxy, the <u>galaxy rotation curves</u> (developed by the American astronomer Vera Rubin) are used. These graphs are elaborated as a scatter diagram in which the orbital velocity of the stars present in a galaxy is represented on the Y axis and the distance of these stars to the center of the galaxy on the X axis.

Thanks to this diagram, it has been possible to observe a characteristic behavior in the rotation speed of the stars (and gas) present in the galaxies, which differs from the rules of the orbital movement of the planetary systems postulated by Newton and Kepler.

This means that in these galaxy rotation curves it has been observed that the rotation speed of stars and gas is "constant", regardless of the distance to the center of the galaxy. This discrepancy and these results were then used to demonstrate the existence of dark matter in the universe.

6 0
3 years ago
Need help plz.!.!..,.,.,.,.,
s344n2d4d5 [400]

Answer:

its only easy

Explanation:

hshshshshshhs let me answer

8 0
3 years ago
what parts of north america are the same latitude as the northernmost and southernmost parts of scandinavia
harina [27]

Answer:

The parts of North America on the same latitude as the northern and southernmost parts of Scandinavia are Canada and Alaska

Explanation:

The artic circle is one of the famous latitudes that is located at the topmost part of the globe. It runs through 66°33′48.2″ above the equatorial line. The artic circle passes through the following countries as it circles the globe latitudinally.

1. Alaska

2. Canada

3.Russia

4. Norway

5. Finland

6. Sweden

Canada and Norway lie on the same latitude as Finland and Sweden which are the northern and southern parts of Scandinavia

3 0
3 years ago
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