C. around the edge of the pacific ocean
The history of Berlin starts with its foundation in the 13th century. It became the capital of the Margraviate of Brandenburg in 1417, and later of Brandenburg-Prussia, and the Kingdom of Prussia. Prussia grew rapidly in the 18th and 19th century, and formed the basis of the German Empire in 1871.
The car needs 6 gallons of gasoline
V shaped contour line pointing downhill indicate a ridge line, while the ones pointing uphill indicate a water flow.
Explanation:
The contour lines are one of the basic and most important elements on the maps. While in general they are associated with representing the elevation, they actually tell much more about the topography of a place. In a typical contour line, it is relatively common that the V shape occurs at particular places.
The V shape can be pointed downhill or uphill. The ones that point downhill are indicators of a ridge line, thus they show us the ridge more easily, so we can orientate better and have better representation of the area. The ones that point uphill, on the other hand, are indicators that there is a water flow, or there was a water flow. The rivers and streams with their erosive power manage to create such shapes in the relief, if viewed from above. The opening on the V is from where the water flows down.
Some of the types of contour lines are:
- isopleths
- isohyets
- isobars
- isobaths
- isoterms
- isonephs
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Answer:
A rock with a half-life of 5,280 years having 1/8th of the parent material left will be 15,840 years old.
Explanation:
The half-life of a material is the time needed for only half of the parent material to be left, while half has is gone, or rather has disintegrated. The half-life is used further into the falling apart of the parent material though, with the same principle being applied. Practically, from the 1/2 of the parent material being left, the half-life of it would mean 1/4 of the parent material being left, and from that 1/4, the half-life would be at 1/8 of the parent material being left, and so one, by simply dividing in two.
In this case, having a half-life of the rock of 5,280 years, we will simply need to add that amount of years on every next phase. So, the half-life is 5,280 when 1/ of the parent material is left. When 1/4 of the parent material will be left we will have an age of 10,560 years, while when only 1/8 is left, we will have 15,840 years of age for the rock.