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algol [13]
3 years ago
9

Which of the following methods can be used to determine the relative age of rock and strata? Select all that apply.

Chemistry
2 answers:
jolli1 [7]3 years ago
8 0

Answer:

Stratigraphy and Biostratigraphy

Explanation:

Stratigraphy is a science, a branch of geology, which studies the composition, structure and succession of stratified rocks in order to reconstruct the physical history of planet Earth.  The study of rock strata provides information on various formation environments and the ancient physical landscapes of the earth. With stratigraphy it is possible to determine the relative age of the rock and strata. In addition, stratigraphy is also able to provide data on the climate of our planet for thousands or even millions of years and also enables us to determine the time when a particular animal or plant organism lived when one of these is found in a particular rock stratum.

Biostratigraphy is a branch of stratigraphy. In biostratigraphy the relative age of rock and strata is defined by the type or species of fossils that are found in this layer. For example, Rincosaurs are found in the upper Triassic. If a paleontologist finds a fossil of Rincosaurus, this layer is from the Triassic.

avanturin [10]3 years ago
4 0

I believe the answer is Archeolegy


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If 16.0 mL of acetone is dissolved in water to make 155 mL of solution what is the concentration expressed in volume/volume % of
Lady_Fox [76]
Percentage by volume of solution is the percentage volume of solute in total volume of solution.
Volume percentage (v/v%) = volume of solute / total volume of solution x 100%
volume of solute - 16.0 mL
total volume of solution - 155 mL 
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7 0
3 years ago
A mixture of methane and carbon dioxide gases contains methane at a partial pressure of 431 mm Hg and carbon dioxide at a
KatRina [158]

Answer:

XCH₄ = 0.461

XCO₂ = 0.539

Explanation:

Step 1: Given data

  • Partial pressure of methane (pCH₄): 431 mmHg
  • Partial pressure of carbon dioxide (pCO₂): 504 mmHg

Step 2: Calculate the total pressure in the container

We will sum both partial pressures.

P = pCH₄ + pCO₂

P = 431 mmHg + 504 mmHg = 935 mmHg

Step 3: Calculate the mole fraction of each gas

We will use the following expression.

Xi = pi / P

XCH₄ = pCH₄/P = 431 mmHg/935 mmHg = 0.461

XCO₂ = pCO₂/P = 504 mmHg/935 mmHg = 0.539

3 0
2 years ago
ROY G BIV arranges the colors of the rainbow *
Elanso [62]

Answer:

Wavelengths..

Explanation:

The colors we see always go from red, which is least refracted, through orange, yellow, green, blue, indigo and violet -- Roy G Biv. The blue, indigo and violet wavelengths are refracted the most as sunlight passes through raindrops.

8 0
3 years ago
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goblinko [34]
Nitrogen and oxygen are in unpolluted air

6 0
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Oksana_A [137]

Answer:

★ Molecular geometry is described by VSEPR theory, which basically states that electron pairs around a central atom will repel each other, and get as far apart as possible, in three dimensions.

Explanation:

Hope you have a great day :)

6 0
2 years ago
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