1 - 2
2 - 7
3 - 5
4 - 3
5 - 6
6 - 4
7 - 1
You can research these individually to learn more about each :)
Answer:
1. I
2. B.
3. F
4. M
5. R
6. H
. . . I don't see a seventh letter or a seventh layer. . .
Explanation:
On the presented image we can see several different layers of rocks that have formed over several different periods of time. It is not layers that have superposition, but instead there are several disturbances that have resulted in displacing some of the layers from their initial position.
The layer I is the oldest, and it is the basis on which the other layer lie.
Layer B is the second oldest and layer F is the third oldest. We can see though that the left side is higher, while the right side is positioned lower. The reason for that is geological activity that has pushed one side upwards, and moved the other side downwards, most probably a fault.
Layer M is the fourth oldest layer, and it is easy to see that this layer lies completely on top of layer F, just that it has been cut through by an intrusion.
Layer R is the top layer, and it is the second youngest. As a layer though it is the youngest, and it is almost uninterrupted and lying on top of all the other layers.
With the letter H we have the youngest geological structure on the image. It represents an intrusion, and it is not a layer. We can tell that it is the youngest because it has managed to cut through all other layers, which is only possible if there were already preexisting layers when the intrusion occurred.
<h2>
Answer: 10 parsecs</h2>
Parallax is the angle formed by the observation lines to a very distant object from two separated points.
The procedure to measure this distance in the case of a star, is based on observing it from two different places far away from each other, and then through trigonometry reach to the following relationship:
(1)
Where:
is the distance from Earth to the observed star (in Parsecs )
is the earth-sun distance that is equivalent to an astronomical unit (1AU=150000000km)
is the angle of the parallax (in arc seconds )
Now, the distance to an object (measured in parsecs) is the reciprocal of the parallax (measured in arcseconds).
Then, in its simplified mode, the stellar parallax is given by the following equation:
(2)
<u>Finally we have the distance to the star:</u>
During the process of eruption the volcanoes shake in order for the lava to move quickly
Aborigines and Torres Strait Islanders inhabited first, the British colonized it.