Which pair of elements can be used to determine the age of a fossil that is over one billion years old?
A.lead, which is radioactive, and uranium, which is stable

B.carbon, which is radioactive, and nitrogen, which is stable

C.argon, which is radioactive, and lead, which is stable

D.potassium, which is radioactive, and argon, which is stable

Answers

Answer 1
D sorry if I’m wrong
Answer 2

Answer:

A

Explanation

It should be A., lead and uranium.


Related Questions

What is a nerve impulse?

Answers

Answer:

A signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.

Explanation:

Answer:a signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.

Explanation:

Hello! I need help ASAP and no links

Answers

Answer:

A

Explanation:

Answer- Gas bubbles
There are 5 conditions of chemical changes which are Color change, Formation of a precipitate, formation of gas, change in odor, or change in temperature

Cells routinely release wastes as they perform their functions. In the human body, this waste is often released into the bloodstream.

Which organ removes much of this waste from the bloodstream so that it can then also be removed from the body?
A.
the heart
B.
the stomach
C.
the kidneys
D.
the lungs

Answers

Answer:

c. the kidneys

Explanation:

have a good day!

It would have to be C

What percent of the time is a cell in Interphase? What about Mitosis?

Answers

Answer:

90%, 10%

Explanation:

The cell spends most of its time in Interphase.

Name the organs of the respiratory system

Answers

Answer:

Explanation:

Nose.

Mouth.

Larynx.

Pharynx.

Lungs.

Diaphragm.

Answer: The organs of the respiratory system are

Nose

Mouth

Throat (pharynx)

Voice box (larynx)

Windpipe (trachea)

Large airways (bronchi)

Small airways (bronchioles)

Lungs

Explanation:

Plz mark as Brainliest

Hope this helps :)

tmi but- my ti-t really hurs

Answers

Answer:

girl.... I don't even know what to say

Answer:

lil weird to say on brainly But SAME

Explanation:

its been hurting for the past 2 days lol

R.ate me please 1-100

Answers

Answer:

99

Explanation:

Scientists have observed that the planets closest to the Sun orbit faster than the planets farther away from the Sun. What is responsible for this observation? (help fast)
A
the nuclear energy of the Sun

B
the magnetic field of the planets

C
the gravitational force of the Sun

D
the electrostatic force of the planets

Answers

I think b or d pls brainlest

Answer:C

Explanation:Its gravitational force of the sun

What process would allow the molecule to move into the cell?

Answers

Answer:

diffusion

Explanation:

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

What type of air mass forms over Orlando FL

Answers

Maritime air masses form over Orlando Florida

Maritime tropical air mass forms over Orlando FL.

What do you mean by Air mass?

Air mass may be defined as a large volume of air in the atmosphere that is mostly constant in temperature and moisture.

A Maritime tropical air mass is associated with warm, humid weather and thunderstorm. This type of air mass is most commonly found in the United States during summer months.

It also reduces the intensity of sunlight during winter months and hence temperature declines.

Therefore, maritime tropical air mass forms over Orlando FL.

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The first Adrick agricultural species to be altered by genetic modification words though soybean be right

Answers

Answer:

Tomato.

Explanation:

Tomato is the first Adrick agricultural specie to be altered by genetic modification in order to increase the productivity. Soybean and many other plants also changed by doing modification in their genes which enhances the productivity as well as the quality of these plants. Genetic modification helps us to increase the yield of food crops in order to feed the existing population so we can conclude that  genetic modification be done to achieve higher productivity of crops.

please help , with the question on the picture

Answers

Answer:

Spring?

Explanation:

The answer is fall because it’s facing more than half away from the sun right before it enters winter

Identify the 2 main types of cetaceans and explain how they are classified.

Answers

Answer:

The Mysticetes (baleen whales); and the Odontocetes (toothed whales). Baleen whales are also called mysticetes, which means “mustached whale”.

What is the relationship between the temperature of internal material and volcanic eruptions?


plz help.....

Answers

Answer:

Direct relationship.

Explanation:

There is direct relationship between the temperature of internal material and volcanic eruptions because the temperature of internal material causes the volcanic eruptions. The temperature of the internal material puts pressure on the rocky surface and the gases that releases from heating processes will cause pressure which leads to the eruption of the volcano so we can say that there is a direct relationship between temperature and eruption.

during photosynthesis plants take in___from the atmosphere and release___ back into the atmosphere

Answers

Answer: during photosynthesis plants take in Carbon Dioxide from the atmosphere and release oxygen back into the atmosphere

Explanation:

plants need carbon dioxide to grow and they give oxygen as a waste product which we need to survive

Stacy wants to measure the rate of photosynthesis for her plant. Before she can begin, she needs to determine what key variable she should measure.

Which of the following questions should Stacy ask in order to determine the rate of photosynthesis in her plant?

Answers

Answer:C

Explanation:

If you don’t believe me look up “ what is needed to determine the rate of photosynthesis in a plant” hope I helped

Leukemia is cancer of the body’s blood-forming tissues. A leukemia patient’s bone marrow produces abnormal white blood cells which do not function properly. A pharmacology company is trying to develop drugs to regulate the production of abnormal white blood cells. Which of the following processes is most likely affected by this new drug? A Cellular respiration B Transport of molecules C Cell differentiation D Cellular division

Answers

the answer would be D. cellular division

What is likely missing
from the following
food chain:
berries→ snake →
owl?
A. Bear
B. Mouse

Answers

Answer: Mouse

Explanation: Because a snake is a carnivore, it does not make sense for a snake to eat berries. However, by adding a mouse between berries and snake, the food chain will make sense.

Mouse

Because the mouse will get eaten by the snake but the best cannot it is a larger predator to the snake therefore it wouldn’t be able to be eaten by the snake

What is the end result of meiosis?
A. 2 identical cells

B. 4 genetically unique cells

C. 2 unique cells

D. 4 identical cells

Answers

Answer:

Meiosis end result: D. 4 identical cells. Mitosis's end result is 2 identical cells.

Answer:

4 genetically unique cells

Explanation:

How do the organ systems function together in the human body?

Answers

Answer:

Some body systems work together to complete a job. For example, the respiratory and circulatory systems work together to provide the body with oxygen and to rid the body of carbon dioxide. The lungs provide a place where oxygen can reach the blood and carbon dioxide can be removed from it. Some body systems share a common organ that performs more than one job.

What are some things that determine human traits

Answers

Answer:

Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.

What is unisexual organism?​

Answers

jelly fish.............

During which days of the menstrual cycle does
the level of FSH increase? What happens to the
follicle during this time?

Answers

Answer:

a menstrual cycle is considered to begin on the first day of the period the average cycle is 28 days long

which policy would most likely decrease a city's gasoline use

Answers

Make sure the gas cap is on tight. One reason you may not be getting the mileage you expect is because there isn't as much gas in your tank as you think. 147 million gallons of gas were lost last year due to evaporation. Why did it evaporate? The gas cap was not on tight. So just make sure it is tight, and it will enable you to keep all the gas you pay for

The cost-effective policy will be deemed the most beneficial in reducing the use of gasoline in cities.

What is policy of cost effectiveness?

A cost-effective policy focuses on both the cost and the quality of the product. The use of gasoline can be reduced by improving the technologies in vehicles where the engine consumes less gasoline.

Aside from that, by introducing new vehicles with comparable fuel consumption, consumers will be diverted from gasoline to other fuel-based vehicles with efficient output.

The government can also raise gasoline prices, but this has a negative impact on people's financial stability, resulting in a decrease in gasoline consumption.

Thus, this policy would most likely decrease a city's gasoline use.

For more details regarding cost effectiveness, visit:

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Is any FAP considered an innate behavioral response?

Answers

Answer

Explanation:

i dont know plz help

Are the volume values similar to each other, or are they quite different? Explain why you
see what you see. If they are similar, explain why. If they are different, also explain why.

Answers

Need more context/ Missing necessary figure.

Compare and contrast a fossil and a trilobite.(1 point)


A (Both fossils and trilobites are relativity new, both being around 1,000 years old. However, fossils are only found under water, whereas trilobites are found all over the globe.


B (Both fossils and trilobites are relativity new, both being around 1,000 years old. However, trilobites are only found on the bottom of the ocean, whereas fossils are found only on land.


C (Both fossils and trilobites are extremely old. However, a fossil was a creature that was living on Earth at some point that over time turned into a trilobite, meaning a fossil is one type of many different types of creatures found in trilobites.


D (Both fossils and trilobites are extremely old. However, a trilobite was a creature that was living on Earth at some point that over time turned into a fossil, meaning a trilobite is one type of many different types of creatures found in fossils.

NO FILES

Answers

Answer:

D. Both fossils and trilobites are extremely old. However, a trilobite was a creature that was living on Earth at some point that over time turned into a fossil, meaning a trilobite is one type of many different types of creatures found in fossils.

Both fossils and trilobites are extremely old. However, a trilobite was a creature that was living on Earth at some point that over time turned into a fossil, meaning a trilobite is one type of many different types of creatures found in fossils. So, the correct option is D.

What do you mean by Fossil?

Fossils are the preserved remains of the organisms whose bodies were buried in the sediments, such as sedimentary rocks.

Trilobite is a member of a group of extinct fossil arthropods easily recognized by their distinctive three-lobed and three-segment forms. It is exclusively a marine animal. It first appeared at the beginning of the Cambrian period.

Therefore, option (d) significantly compares and contrasts a fossil and a trilobite.

To learn more about Fossils, refer to the link:

https://brainly.com/question/11224681

What is the name of the phylum where starfish are found? Why is this an appropriate name for the phylum?

Answers

Answer:

Starfish are also referred to as sea stars because of their star-shaped appearance. They are a part of the phylum Echinodermata and are related to sand dollars, sea urchins, and sea cucumbers.

Explanation:

Most available freshwater is used for

Answers

Answer:

ok so In most regions of the world, over 70 percent of freshwater is used for agriculture.

PLEASE HELP ME!! ^^^^^^

Sexual Reproduction

Geographic isolation

common DNA

predation

Answers

Answer:

I'd say b, but I dont know for sure

Answer:

sexual reproduction

Explanation:

i think lng po pero Sana makatulong

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