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storchak [24]
3 years ago
14

. To be an index fossil, a fossil must

Geography
1 answer:
Ket [755]3 years ago
3 0

Answer:

a. They must be present in a large geographic area.

Explanation:

Index fossils can be used to determine the age of a rock strata with great precision, but they must be scattered over a large geographic area to be able to be used reliable for this type of measurement. Index fossils typically indicate a certain type of paleoenvironment belonging to a very specific prehistoric period and their formation coincides with the age of the rock layer.

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Insulin is the key hormone of carbohydrate metabolism, it also influences the metabolism of fat and proteins. It lowers blood glucose by increasing glucose transport in muscle and adipose tissue and stimulates the synthesis of glycogen, fat, and protein.

6 0
3 years ago
What system do geologists use today for rating the magnitude of an earthquake? explain how it works?
skelet666 [1.2K]
The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
8 0
3 years ago
Plate Tectonics is the ___ of the Earth’s rigid lithospheric plates as they slide slowly over the asthenosphere. 
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Use Socratic to get the answer to your question
7 0
2 years ago
Historic texts can be trusted to help in the location of archaeological sites
Tamiku [17]

True. Historic texts can be trusted to help in the location of archaeological sites.

Archaeological sites

An archaeological site is a location that has been or may be explored using the discipline of archaeology and preserves traces of previous activity. It forms a part of the archaeological record. Sites can include those with few or no apparent remnants above ground as well as ones with standing buildings and other structures.

To know more about Archaeological sites, Check out:

brainly.com/question/575997

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5 0
1 year ago
what is the azimuth of the sun at sunrise on the Vernal Equinox? At what other day during the year is the azimuth of the sun the
Radda [10]

Answer:

March equinox is day during the year when all the daylight of the sun is asme at sunrise and sunset.

Explanation:

  • Equinox is the time when the plane of the earth passes through the centre of the sun. Occurring around 23 March and 23 Sept. The vernal equinox is also called as the spring equinox.
  • The azimuth of the sun is the angle of the sun's position defined by the relative direction along the horizon. However the most commonly followed convection for analyzing the sun radiation is 90 degrees east, south 180 degrees and west is 270 degrees.  
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6 0
3 years ago
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