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aliya0001 [1]
3 years ago
11

Which statement is most likely correct about two rocks belonging to the same age, one containing fossils of an amphibian and the

other containing fossils of mosses?
They were exposed to agents of erosion like wind.
The amphibian and mosses belonged to the same age.
They contain the oldest fossil in the topmost layer of the rock.
The rocks are of different types because they have different fossils.
Chemistry
2 answers:
oksano4ka [1.4K]3 years ago
5 0

Answer:

the theory of evolution

Explanation:

i took the quiz :)

alexira [117]3 years ago
4 0

The correct answer is option B. The amphibian and mosses belonged to the same age.

Since the rocks belong to the same age and one contain fossils of an amphibian and the other containing fossils of mosses, it is very likely that both the amphibian and the mosses existed at the same time.

Sedimentary rocks generally have fossils in them and it is very easy to determine the age of the fossils from Radiometric Dating using radioactive carbon C¹⁴. However, before the complete understanding of radioactive decay fossil, age was determined by studying the succession of fossils on old to younger sedimentary rocks.


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For each of the following factors, indicate whether the pH increases or decreases and explain why the factor may cause variation
Leya [2.2K]

Answer:

Photosynthesis can increase the pH level of the water and the reason is because it removes carbon dioxide that is present in the water.

Explanation:

Photosynthesis is a chemical process/cycle that is executed by plants by consuming carbon dioxide and releasing oxygen into the air or water.

The photosynthesis can cause the pH level of the water to rise because of the removal of carbon dioxide from the environment.

I hope this answer helps.

8 0
4 years ago
Iron(II) sulfide has a primitive cubic unit cell with sulfide ions at the lattice points.
masya89 [10]

We have that the  the density of FeS  is mathematically given as

  •  \phi=2.56h/cm^3

From the question we are told

Iron(II) sulfide has a primitive <em>cubic</em> unit cell with <em>sulfide</em> ions at the <em>lattice points.</em>

The ionic radii of iron(II) ions and sulfide ions are 88 pm and 184 pm, respectively.

What is the density of FeS (in g/cm3)?

<h3>Density</h3>

Generally the equation for the Velocity  is mathematically given as

V_c=a^3=(2\pi Fe^{2+}+2\pi S^{2-})^3\\\\Therefore\\\\V=a^3(2\pi*0.088+2\pi 0.184)^3\\\\V=16.98*10^{-23}\\\\Therefore\\\\\phi=n\frac{PFeion+PSion}{VNa}\\\\\phi=3*\frac{55.85+32}{16.9*10^{-23}*6.023*10^{23}}

  • \phi=2.56h/cm^3
  • \phi=2.56h/cm^3

For more information on ionic radii visit

brainly.com/question/13981855

4 0
3 years ago
Given: K = °C 273. 15 What is the temperature of the flame in degrees Celsius? You measure the flame of a candle and get a readi
Ira Lisetskai [31]

Temperature is a physical quantity measured by Celsius and Kelvin. The temperature of the candle flame is \rm 1102.91^{\circ}C.

<h3>What are Celsius and Kelvin?</h3>

Celsius and Kelvin are the degree unit of temperature and is used for measuring the hotness and coldness of the substance.

The formula for calculating temperature in Celsius is:

\rm K = ^{\circ}C + 273.15

Given,

  • K = \rm ^{\circ} C + 273.15
  • K = 1,376.06

Substituting values in the formula:

\begin{aligned}1,376.06 &= ^{\circ}\rm C + 273.15\\\\^{\circ}\rm C &= 1,376.06 - 273.15\\\\&= \rm 1102.91^{\circ}C\end{aligned}

Thus, \rm 1102.91^{\circ}C is the temperature of the burning candle.

Learn more about temperature here:

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6 0
2 years ago
(50 POINTS!!!)
Brrunno [24]

Answer:

1. battery

2. the other bulb would not light

3. the other bulb lit normally

4. the series curcuit with 1 bulb was brighter than the series circuit with 2 bulbs

5. both bulbs were illuminated equally

Explanation:

just took the quiz in case anyone needs it

7 0
3 years ago
What is the oxidation number of Pb(NO3)2​
ivanzaharov [21]

Answer:

+2

Explanation:

The nitrate ion is a radical with an overall charge of -1. To get the oxidation number of lead, add up all the oxidation numbers and equate to zero. Therefore the oxidation state of lead is +2.

6 0
3 years ago
Read 2 more answers
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