List What are two radioactive isotopes that are useful for dating rocks that are
older than 10 million years?

Answers

Answer 1

Answer:

rubidium-87 and strontonum-87

Explanation:


Related Questions

Cite examples of changes brought about by a shift from rural to urban living.
pls help asap!!! ty :)

Answers

Answer:

As populations transition from rural to urban living, many social changes take place. For example, as people move to urban environments, they tend to live in closer proximity to each other. This presents problems when it comes to sanitation and hiegiene.

Explanation:

hope this helps

have a great day/night

Match the climate zone in column 1 to the place in column 2.
Tropical
?
Panama
Cold
?
Sahara
Moderate
?
California
Dry
?
Greenland

Answers

Answer:

Sahara would be dry, California, moderate and Greenland, cold.

The answers are:

Sahara ⇔ dry, California ⇔ moderate Greenland ⇔ cold.Panama ⇔ Tropical

Why is the Sahara desert so warm?

One of the reasons at the back of this drastic trade is hidden inside the grains of sand masking the desolate tract. Sand receives warm simply fast; so, while the solar is shining bright, it absorbs all of the warmness directed on the floor. The mild substance is likewise great at reflecting the heat into the surrounding air, making it super-hot.

The desert accommodates a whole lot of North Africa, aside from the fertile vicinity on the Mediterranean beach, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the pink Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, in which the landscape step by step modifications from wilderness to coastal plains.

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Which country or countries can natural gas be found plssssssssssssss help NO LINKS this is du win ten minutes

Answers

russia has the most but there’s also iran, qatar, turkmenistan, usa, saudi arabia, united arab emirates, venezuela, nigeria, and algeria

Where is cattle found on earth plsssss help NO LINKS

Answers

Answer:

The density of cattle is highest in India, in east Africa, in northern Europe, and in South America

On every continent except for antarctica

List 2 discoveries from Thomson's experiment.

Answers

Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."

Which statement is correct for a country whose role in the global economy is to provide
raw resources.

Answers

I don’t get the question

How were the islands of the Mediterranean
formed

Answers

Earthquakes formed the islands

Select the correct answer.
Some crops in Mathews field were destroyed by some insects. To avoid future destruction of his crops, he decided to release sterile male insects
in his field. Which pest control technique did he use?
OA chemical pest control
OB, cultural pest control
OC. genetic pest control
OD biological pest control

Answers

Answer:

the correct answer is OA chemical pest control

How many kilometers long is the perimeter of a square whose area is 25square
kilometers?

Answers

Answer:

20km

Explanation:

If the area is 25, then the length of one side will be the square root of 25. The square root of 25 is 5, so each side must be 5 km long. If each of the four sides is 5 km long, then the perimeter would be 20 km because there are four sides total

What term is used for the deepest parts of the ocean floor?

Answers

Answer:

trenches

Filler filler

Answer:

Trenches

Explanation:

most of europe are considered what type of government?

Answers

Answer: Republic

Explanation: Most positioms that are taken in the European government are mainly filled by republicans.

x = A 21.6 B 12.9 C 9.1

Answers

Hi there! Use the equation below.

[tex] \large{sin57 \degree = \frac{10.8}{x} }[/tex]

The reason why we use this equation because we know that sinA = opposite/hypotenuse. Here we focus on 57°. Our opposite would be 10.8 and hypotenuse is x. Hence sin57° = 10.8/x

You might need a calculator or a trigonometric table to find the value of sin57°. Note that not all values are exact. They are approximate.

Therefore, sin57° ≈ 0.838.

Rewrite the equation.

[tex] \large{0.838 = \frac{10.8}{x} }[/tex]

Solve the equation for x-term.

[tex] \large{0.838(x) = \frac{10.8}{x} (x)} \\ \large{0.838x = 10.8} \\ \large{x = \frac{10.8}{0.838} } \\ \large{x = 12.88}[/tex]

Then round up to the nearest tenth. Hence, the value of x is 12.9

Answer

x ≈ 12.9

6. A position
on the earth's surface best describes which of the five themes of
geography?

Answers

Answer: Students will identify each of the five themes of geography: Location (absolute and relative), place, region, movement and human-environment interaction.

Explanation:

Which country has an economy based mostly on the production and sale of
energy?
A. Kuwait
B. Germany
C. Argentina
D. South Africa
SUBMIT

Answers

A. Kuwait that’s the right answer

Answer: c

Explanation: c because they wanna know what is the sale production

which of the following phrases defines culture

Answers

Answer:

The shared values practices and beliefs of a group.

why you find thunderstorm it to be the most terrifying of weather.

Answers

Answer:

Individuals with a family history of anxiety, depression, or phobias may be at greater risk for astraphobia. Experiencing weather-related trauma can also be a risk factor. For example, someone who has had a traumatic or negative experience caused by severe weather may acquire a phobia to storms.

Explanation:

Which of the following does NOT occur as ecological succession progresses?
A.Soils that are rich in nutrients become deeper.
B.Larger plants and animals inhabit the area.
C.Biodiversity decreases.
D.Sustainability increases.

Answers

Answer:

uhh C?

I think

Biodiversity decreases does NOT occur as ecological succession progresses. Hence, option C is correct.

What is ecological succession?

The process by which a region's species and habitat mix evolves over time is called ecological succession. These communities gradually replace one another until a "climax community" is attained, such as a mature forest, or until a disruption, such as a fire, happens. A key idea in ecology is ecological succession.

For instance, when a tree falls in an established forest, sunlight may once more be able to penetrate the forest floor, allowing new growth to start. In this instance, fresh, smaller plants would be the first in the succession. Communities are ever-evolving and expanding.

ecological succession is the process by which a biological community's structure changes over time. Primary and secondary succession have been identified as two distinct forms.

Thus, option C is correct.

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Which photo shows no evidence that the rock has been deformed by
movements of Earth's crust?
A.
O
D.

Answers

Answer:

C

Explanation:

Image C shows horizontal layers of rock that are undisturbed and appear flat. There are no signs of folding, faulting, or tilting, indicating that the rock has not been deformed. Therefore, this photo shows no evidence of deformation by movements of Earth's crust. Option C is the correct answer.

When the Earth's crust undergoes movements, such as tectonic forces, rocks can be deformed. This deformation can take different forms, including folding, faulting, and tilting. Folding occurs when layers of rock bend and fold due to compression. This can result in curved or wavy patterns in the rock layers. Option C is the correct answer.

Examples of folding can be seen in mountain ranges where the Earth's crust has been compressed and folded over time. Faulting happens when rocks break and slide along a fault line. This can create offset layers of rock and visible fractures in the Earth's crust. Faulting can be seen in areas where earthquakes occur, as the movement along the fault line causes the rocks to deform. Tilting occurs when rocks are inclined or tilted from their original horizontal position. This can happen due to tectonic forces or other geological processes. Tilting can be observed in areas where the layers of rock are no longer parallel to the Earth's surface.

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A cone with diameter 10km and a height of 12km

Answers

If you’re trying to find the volume of a cone here is how to do it:


Use the formula: V = pi x r^2 x h/3


I will answer in terms of pi:


So we know that a radius would equal half the diameter. So the radius would be 5. Then square it which would be 25.


V = pi x 25 x h/3


And of course we know the height which is 12. You would plug the 12 in at “h” and divide it by 3 which is 4:


V = pi x 25 x 4


And now we just have to multiply 25 and 4 which is 100.


V = 100pi


In terms of pi, the answer would be 100pi.


If you don’t want it in terms of pi you would multiply 100 times 3.14 since pi is equal to 3.14:

V = 100 x 3.14
= 314



So the answer would be either:

100pi OR 314


Technological improvements have changed economies of scale in both commercial and subsistence agriculture.
A. Compare and contrast subsistence and commercial farming with regard to purpose, characteristics, and employment.
B. Describe two types of subsistence agriculture and identify geographic regions and climate zones where they are practiced.
C. Describe two types of commercial agriculture and identify geographic regions and climate zones where they are practiced.

Answers

Answer:

B. Describe two types of subsistence agriculture and identify geographic regions and climate zones where they are practiced.

Explanation:

Read the sentence below and answer the question that follows.
Each economic sector plays a vital role in a nation's economy.
The word underlined in the sentence above is best defined as
A decision
B. activity
C. dollar
D. part

Answers

the correct answer is B!

Answer:

the answer is D on edge2022

Explanation:

The effects of poor land management practices include _____.

afforestation
increased aridity
salty soil
increased population growth

Answers

Answer:

increased aridity, salty soil

Explanation:

Select the choice that best fits each statement. The following question(s) refer to the following energy sources. (A) Biomass. (B) Wind (C) Tidal energy (D) Nuclear fission (E) Sunlight. The source that is converted directly into electrical energy by photovoltaic cells

Answers

Answer:

E.

Explanation:

The photovoltaic cell is an electronic device that produces electricity when exposed to light particles. It is commonly known as solar cells.

Solar cells are used to convert sunlight energy into electricity. Solar cells are those non-mechanical devices that help to change solar energy directly into electricity. This process of conversion is known as the photovoltaic effect.

Therefore, option E is correct.

5. Debt-for-nature swaps are financial transactions
in which a portion of a developing country's
foreign debt is forgiven in exchange for local
investments in environmental conservation
measures. Which of the following explains the
significance of debt-for-nature programs?

Answers

Answer:

B). The programs provide a sustainable-development approach to reducing uneven levels of development between countries.

Explanation:

As per the question, the second option correctly displays the importance of programs under 'debt-for-nature' that 'these programs offer an approach of sustainable development in order to bring reduction to the unequal degree of developments among countries.' They assist in deploying the resources in order to safeguard the nature of developing countries by financially helping them. The financial help is provided by the developed countries to developing countries on the terms that the amount would be spent on the conservation of nature and its resources. This promotes continuous development where we not only consider our present needs but also look for the future. Thus, option B is the correct answer.

The significance of the debt-for-nature programs can be explained as "The programs provide a sustainable-development approach to reducing uneven levels of development between countries."

What is debt-for-nature program?

The debt-for-nature program is a tool used by to promote contribution in environmental conservatism. A debt-for-nature swap involves purchase of  foreign debt, conversion of it into local currency and then using the same for  conservation activities.

The main benefit that can be derived from the program is the promotion of  sustainable development and  equal development between countries.

Therefore the correct option is B.

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you are from India you indian..........​

Answers

Answer:yes

Explanation:

Answer:Yes you are Indian if you’re born from India correct

Explanation:

How did Jackie Robison advocate for black advancement during the Jim Crow era

Answers

Answer: In his first year with the movement, Jackie crisscrossed the country and helped to raise $1 million for the NAACP. By the early 1960s, Robinson raised money for SCLC by hosting jazz concerts in his backyard. The funds were raised to help provide bail money for the jailed activists.

Jackie and his family also participated in Civil Rights marches. He was on the front line during the famous “March on Washington” on Aug. 28, 1963, that culminated with King’s unforgettable “I Have a Dream” speech.

Mrs. Tymes is buying mulch for her flower gardens.
Which option gives her the best price per cubic yard of mulch?

Answers

Answer:

The answer is below

Explanation:

The price list is attached.

From the price list, we can get the price per cubic yard of the mulch. This is done by dividing the price of the mulch by the total cubic yard of the mulch.

A) 3 yd³ for $165

Price per cubic yard = $165 / 3 yd³ = $55 per yd³

B) 4 yd³ for $240

Price per cubic yard = $240 / 4 yd³ = $60 per yd³

C) 6 yd³ for $300

Price per cubic yard = $300 / 6 yd³ = $50 per yd³

D) 8 yd³ for $360

Price per cubic yard = $360 / 8 yd³ = $45 per yd³

MULTIPLE CHOICE QUESTION
Levels of development within countries can vary widely.
False
True

Answers

Answer:

True

Explanation:

Find the volume of a right circular cone that has a height of 6.2 in and a base with a
radius of 12.4 in. Round your answer to the nearest tenth of a cubic inch.

Answers

Answer: 998.3in3

Explanation:

Top 3 ideas based upon affordability. Include a description of the general costs of this plan and why it is less expensive than others.

Answers

Answer:

While the Affordable Care Act (ACA) has made health insurance more affordable for ... for the majority of Americans who have coverage through employer-based plans. ... Why Average Americans Cannot Afford Health Care ... Almost half of our nation's income goes to the top 10 percent of the population.

Explanation:

this was right for another person !!

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Which of the following claims, with appropriate evidence, if any, supports the notion of the two- charge model? Justify your selection. A. The first rubber balloon is repelled by the second rubber balloon, but the first rubber balloon is attracted to the hair. These results show that two charges must exist because certain combinations of charges attract and certain combinations of charges repel. B. The first rubber balloon is repelled by the second rubber balloon. This result shows that the charge of both objects must have the same sign. C. The first rubber balloon is attracted to the hair. This result shows that the charge of both objects must be opposite in sign. D. None of the claims nor evidence support the notion of the two-charge model. Which of the following shows the solution to m + 5 > -1? 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Here is how the winner is determined:Rock beats scissors because a rock can break scissors.Paper beats rock because paper can cover a rock.Scissors beats paper because scissors can cut paper.Go to https://repl.it/ to write your program.Your program should do the following:Randomly choose rock, paper, or scissors for the computerAsk the user to choose rock, paper, or scissorsCompare the computers choice to the players choiceAnnounce whether the computer or the human wonHere are two hints to help you write this program:Test parts of your program to see if they work before moving on to work on other parts. For example, you will need to have the computer select a random number and then choose for that number to correspond to rock, paper, or scissors. You can write just that portion of the program and then test it by having the program print the word rock, paper, or scissors before you even begin working on the part of the program where the user inputs their choice. 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