1. The carbon in a buried peat bed has about 6% of the C-14 of modern shells. When the plants that now form the buried
peat were alive, they absorbed C-14 and probably had about the same amount of C-14 as modern shells, so about 94% of
the peat's original C-14 has decayed. What is a reasonable initial estimate of the age of the peat bed? Explain,
2. In sampling the peat bed, you must be careful to avoid any young plant roots or old limestone. Why?

Answers

Answer 1

Based on the percentage that has decayed of the peat's original C-14, a reasonable estimate of the age of the peat bed is 22,880 years.

We should be careful to avoid old limestone because it contains carbon that will help in finding the age of the peat bed sample. Same goes for the young plant roots.

What is an estimate of the age of the peat bed?

This can be found as:
= Half life of C-14 x Number of half lives that have passed

Number of half lives that have passed based on 6% being left of the orginal sample will be 4 half lives.

Estimate of age:

= 5,720 x 4

= 22,880 years.

Find out more on C-14 at https://brainly.com/question/3076768.


Related Questions

Which of these causes mechanical weathering?
Group of answer choices

root action / root wedging

oxygen

acids

chemicals

Answers

Answer:

root action / root wedging

oxygen

please make this answer brainliest If I helped you!

Which storm is most likely to trigger forest fires due to lightning?.

Answers

The answer is thunderstorm because, by process of elimination, it is the only natural disaster that produces lighting. By the way, you spelled all of the answers as a. I hope this was helpful!

Answer:

C. A Thunderstorm

( Hope this helps ) <3    ( Give person above brainliest )

A cross-section of the sun with labels A through E. A: center. B: layer outside the center. C: next layer, above B. D: outermost layer. E: glowing rays extending from the sun.
Identify the parts of the Sun labeled A, B, C, D, and E.

Label A

Label B

Label C

Label D

Label E

Answers

Answer:

Label A:

✔ core

Label B:

✔ radiation zone

Label C:

✔ convection zone

Label D:

✔ photosphere

Label E:

✔ corona

Explanation: I hope this helps :)

Given circle O with diameter MN and radius OK. KL is tangent to O at K. If KM = 29 and MN = 36, solve for KN. Round your answer to the nearest tenth if necessary. If the answer cannot be determined, click "Cannot be determined." M K N L Sahon​

Answers

The value of KN in the circle O with diameter MN and radius OK is about 21.33 units.

What is a circle?

A circle is the locus of a point such that its distance from a fixed point (center) is always constant.

Pythagoras theorem shows the relationship between the sides of a right angled triangle.

In the circle O, ∠MKN = 90° (angle from diameter), hence:

MN² = KM² + KN²

36² = 29² + KN²

KN = 21.33

The value of KN in the circle O is about 21.33 units.

Find out more in circle at: https://brainly.com/question/24375372

Why is understanding the structure of the earth important

Answers

Answer:

Knowing the structure of the Earth is important because without the data that the scientists have gathered over time about the Earth's structure, they would not be able to tell when a natural disaster is about to take place and the place where it is going to take place.

Explanation:

a) What is climate? (2mks)​

Answers

Answer:

Climate is the long-term pattern of weather in a particular area...

Hope it helpz~

Climate is the long-term pattern of weather in a particular area.

QUESTION
* Differentiate between early and modern cartography

Answers

Answer:

You gather all the information about both

You sort it into groups of same or different

You weren’t expecting us to do your homework for you, were you?

That would be cheating.

Explanation:

hope its help

Why are there so many ethnic groups in South East Asia?
I will reward you if you answer this.

Answers

Answer: Southeast Asia is a geographically expansive and populous region characterized by fascinating social and cultural variation. Particularly striking to the outside observer is the region’s ethnic and religious diversity. The majority of the countries in this region are home to dozens of different ethnic groups, many with their own distinct languages, cultures, and styles of dress. Many of these groups have their own systems of religious belief and practice as well.

Explanation: Hope it helps :)

put these layer of earth in
order

Answers

Answer:

going from the exterior to the interior the order is the crust, the mantle, the outer core, and the inner core.

Answer:

crust, mantle, outer core, inner core

Explanation:

-the crust is the thin shell outside the earth.

-the mantle is the layer of silicate rocks

-the outer layer of the core that is made of liquid iron and nickel.

-the inner core is the hot ball made up of iron beneath the outer core.

Which country was under the rule of France, based on this map of European colonialism in Africa?​

Answers

Based on the map, the countries that were under the rule of the French people were:

TogoIvory CoastBenin Republic

What was African colonialism?

This was the period were most African countries had no independence. The white man from Europe was the one that ruled over certain areas.

In West Africa, the French took over some countries, while the British ruled other areas in the continent.

Read more on colonialism here: https://brainly.com/question/8048490

list the sedimentary rock that formed during the mesozoic era in ethiopia and the horn?​

Answers

Answer: sandstone, limestone, shale, marls and evaporites (Adigrat Sandstone, Antalo Limestone, Amba Aradam Formation)

Explanation:

Sandstone, limestone, shale, marls, and evaporites (Adiabat Sandstone, Anatol Limestone) are the sedimentary rocks formed during the Mesozoic era in Ethiopia and the Horn.

What are Sedimentary rocks?

Sedimentary rocks are one of the types of rock formed by the deposition, sedimentation, and lithification of sediments over a long period of time, and these rocks is found in layers and contain fossil fuels.

Rocks formed by the East African Orogeny 880 to 550 million years ago make up the oldest geological units in Ethiopia on the African continent. The orogeny caused the closure of the ancient Mozambique Ocean in the Indian ocean . Rocks of Ethiopia formed concurrently with the Mozambique Belt and the Arabian-Nubian Shield, forming a large north-south mountain chain called the Trans Gondwana Super-mountain.

Erosion of the Gondwana super mountain mountain may have played a role in triggering the Cambrian explosion. Sedimentary rocks of Ordovician age cover this surface, making it largely an unconformity.

Hence, sandstone, limestone, shale, marls and evaporites (Adiabat Sandstone, Anatol Limestone) are the sedimentary rocks formed during the Mesozoic era in Ethiopia and the Horn.

Learn more about Sedimentary Rocks here:

https://brainly.com/question/10709497

#SPJ2

38/-97 latitude/longitude

Answers

Lines of latitude and longitude are used to locate various areas on the surface of the Earth.

What are lines of latitude and longitude?

These are imaginary lines that are drawn across the surface of the Earth which allow us to locate various areas. Lines of Latitude are drawn horizontally and lines of longitude are vertical.

To find a location, one can check the lines of latitude and longitude that cross it.

For instance, Latitude 38 and Longitude 97 refer to a place in China.

Note: Question wasn't complete so I gave a brief overview of latitudes and longitudes.

Find out more on latitudes at https://brainly.com/question/24460166.

Which open-ocean zone order shows decreasing temperature?

deep zone, transition zone, surface zone
surface zone, transition zone, deep zone
transition zone, surface zone, deep zone
surface zone, deep zone, transition zone

PLEASE HURRY WILL MARK BRAINLIEST.

Answers

The open-ocean zone order that has decreasing temperature is a surface zone, transition zone, and deep zone.

What is the open-ocean zone?

The Open ocean zone is referred to  coastal areas that are outside the ocean. It is also known as the epipelagic zone has appropriate sunlight for marine life.

Therefore,  the surface zone has a warm temperature while the transition zone has a cold temperature. Finally, the deep zone has a mixed temperature.

Learn more about geographical temperature here:

https://brainly.com/question/15382223

The open-ocean zone order that has decreasing temperature is a surface zone, transition zone, and deep zone.

how many deaths occurred The Boxing Day Tsunami of 2004

Answers

Answer:

227,898 people died!

Explanation:

in 14 countries.

Answer:

230,000 people died

Explanation:

There were 230,000 people who die.

where does the oil used in the us come from

Answers

The top five source countries of U.S. gross petroleum imports in 2021 were Canada, Mexico, Russia, Saudi Arabia, and Colombia.

Why are meteorologists sometimes wrong about the weather?

Answers

Answer:

the computer programs that calculate the forecasts don't have data from the future, so they have to rely on assumptions

Am to

Culture has a unique
dichotomy
explain

Answers

Explanation:

Ever since, capitalism and conservation have shared much of the same ideological DNA. Take the nature-culture dichotomy—the idea that nature is somehow external to humans. Capitalists have long used that idea to justify treating nature as an object to be manipulated in the pursuit of endless economic growth.

Name two locations and describe their climate and examples of their climate.
PLEASE be as detailed as possible!
Im begging u please help meeee

Answers

Answer:

Florida is a very hot state. in the summer it is 90 degrees Fahrenheit. in the winter its most likely to not go colder than 58. and other states are cold

Explanation:

All of the following were obstacles to independent rule in Africa EXCEPT:
A.
expensive labor costs
B.
single-product economies
C.
lack of education and infrastructure
D.
widespread ethnic and religious diversity


Please select the best answer from the choices provided

A
B
C
D

Answers

If im not mistaken i belive it is B. Hope this help sorry if im wrong

Answer:

It's A. expensive labor costs

Explanation:

I chose B on Edge and got it wrong but shows the correct answer is definitely A

explain the role of IFRS Interpretations committee .​

Answers

Answer:

The role of the IFRS Interpretations committee is to work with the Board to support applications of IFRS standards. :)

I hope this helps <3 I'm kind of weak in this area but I hope I could help a bit.

The majority of the people in Chile are Roman Catholic. They enjoy playing
sports, especially soccer. The largest meal of the day is traditionally eaten in
the early afternoon
What behaviors and beliefs describe the people of Chile make up?

Answers

Answer:

As with most of Latin America, Catholicism is the main religion in Chile since its introduction during the Spanish colonization of the Americas although their figures have declined signifactively in the last decade. According to latest polls, between 45% and 55% of the population identifies as Catholic.

select one way that a public policy of the local, state, or national government has attempted to address the lower standards of living created by unequal distribution of income.

Answers

Answer:

they made a homless shelter

Explanation:

they tried to help those by making a homless shelter

A wave has a wavelength of λ = 100 meters. It is passing over an area of the ocean that is 500 meters deep. Is it a deep-water or a shallow-water wave?

Answers

With a wave length of  λ = 100 and ocean depth of  500m, this wave is a deep water wave.

How to know a deep water wave

This type of wave that has the depth of the water to be more than the wavelength divided by 2.

That is depth > 100/2

If it was the other way round, that is wavelength is more than the depth, then it would be a shallow wave.

Therefore the answer to the question is the deep water wave.

Read more on deep water wave here: https://brainly.com/question/14094281

Why is understanding the structure of the earth important

Answers

Answer:

Studying the interior of the earth helps learn about all of these and the processes that helped create the earth and currently drive plate tectonics.

Explanation:

hope it help...

name any two types of fishing​

Answers

Answer:

ok the first is bait fishing which you put like a small shrimp or something on the hook and bait the fish to bite on it

the second is how the monkey ancestors did by just spearing the fish

Explanation:

use of coast for work and leisure
good affects bad effects on the environmet
i need 5 or more
FAST

Answers

Answer: mark as brainliest

Explanation:

It could be argued that whites in the United States became more accepting of civil rights of African Americans by the 1960s
because
A)
the government gave them little choice.
B)
the population of African Americans increased.
Eliminate
the fear of violence if they did not accept the idea.
D)
the integration of schools helped people get used to the idea.

Answers

It could be argued that the whites became more accepting of tehe civil rights of blacks because the government gave them little choice.

What was the civil rights movement in the US?

This was the time that prominent blacks took to call for a better treatment of the Black people in the United States.

The way that this happened was through demonstrations and civil disobedience. After segregation became outlawed by the governemnt, the white people had to follow governemnt rules.

Read more on segregation here:https://brainly.com/question/12498653

Answer:

It's D!!!

Explanation:

Got it right on USA prep test!!

formation of Valley landscape​

Answers

Answer:

Most valleys are formed by erosion of the land surface by rivers or streams over a very long period of time. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountain or polar areas.

can somebody help me out

Answers

Answer:

B

Explanation:

It was in textbook when studying

cold currents tend to decrease the temparature of coastal regions​

Answers

Answer:

Warm and cold ocean currents can affect the climate of coastal regions, but only when local winds blow in from the sea. Warm currents heat the air over the ocean and bring higher temperatures over land. Cold currents can lower air temperatures and can bring colder temperatures over land.

Other Questions
Please help find Find cosR! You draw a rectangular picture that is 8.5 inches wide. It is 3 times as long as it is wide. Whatis the area of the picture? 55:26Square ABCD was translated using the rule (x, y) (x 4, y + 15) to form A'B'C'D'. What are the coordinates of point D in the pre-image if the coordinates of point D in the image are (9, 8)?(13, 23)(5, 7)(18, 1)(6, 4) A varies inversely with B.When A is 0.25, B is 4.Find the value of B when A is 5. Brainliest if correct 45 points!!!!! One of the options for a software engineer is to work with the testing team of an SDLC project. In your view, state the pros and cons of placing a junior engineer with the testing team. Analyze it from both the companys and employees points of view. Help Ill give brainlessly find tqs C. Describe ONE factor that led to the development of the urbal model above as an urbanlandscape in North America. 1) A solution is prepared with 0.55 M HNO2 and 0.75 M KNO2. Fill in the ICE Table with the appropriate values2) The Ka for this solution of HNO2 is 6.8x10^-4. Based on the ICE table, set up the expression for Ka.3) Based on your ICE table, determine the pH of the buffer solution ( 15 points and Brainliest! )Which statement is true of Cuba?A) The United States acquired Cuba as a protectorate.B) Cuba sold the rights of the Panama Canal to the United States.C) Cuba won the battle of San Juan Hill 8.1. In the article the author confirms that a reduction of the budget deficit is imperative. Briefly discuss the possible methods of achieving this objective which are mentioned by the author as part of his thoughts. (3) 8.2. What is the main conclusion in terms of where to from hereby the author in this article? (3) 80, 60, 45,...Find the 9th term. What is the purpose of a w-4 form, and when do you receive it?. Gabrielle is saving money for a vacation. Each week she save $40. Let a represent the total amount of money Gabrielle saves, and let w represent the number of weeks. How much money would she save from 1 to 7 weeks? Look at the products of the chemical reaction to determine if the reactant added to water caused an acid reaction, a base reaction, or a neutralization reaction.AcidNeutralizationBase1. 2HF + 2CaOH -> 2H2O + 2NaF2. 3HI + 2H2O -> 2H3O+ + 3I- + H+3. 2CH3COO- + H2O -> CH3COO- + OH- + CH3COOH0.05 moles of HCL are added to 2 L of H2O. What is the molarity of the solution?Impossible to answer the question with the information provided.1.600.025M10.4 HELP! only answer if you know 100% its correct Find the sine ratio for D.a. 7/25b. 24/7c. 25/24d. 24/25 Which of the following is true?1)The Jeffersonians wanted to be allied with France tosupport democracy.2)The Jeffersonians wanted to be allied with England foreconomic reasons.3)The Hamiltonians wanted to be allies with France tosupport democracy.4)The Hamiltonians wanted to be allies with France foreconomic reasons. What is the constant term in the expression 8xy + 9x2 y 5x 2? 5 2 8 9 what is the slope between (8, -2) and (-7, 10)?