How is radioactive dating used to measure Earth’s age?

Answers

Answer 1

Answer:

The age of rocks is determined by radiometric dating, which looks at the proportion of two different isotopes in a sample. Radioactive isotopes break down in a predictable amount of time, enabling geologists to determine the age of a sample using equipment like this thermal ionization mass spectrometer


Related Questions

help me pleaseeeeeeeeeeeeeeeeeeeee

Answers

1 Camel, wolf, fox, bell snake, rock rabbit, scorpions, jackals
Snakes, lizards, spiders, scorpions, coyotes, foxes, and the cactus Ren which is a type of bird.

The organisms are related because of their adaptations to the harsh terrain of the dessert and their resistance to the extreme heat and cold of the desert’s days and nights.

Science question i dont know

Answers

f would be your correct answer

Parts of the nonliving environment can become fossils. How does evidence of past environments preserved in rock support the theory of evolution?


A.
It shows which organisms are closely related to each other.

B.
It shows the order in which organisms became extinct.

C.
It explains how organisms can become fossils.

D.
It explains part of the reason that living things evolve.

Answers

Answer:

Explanation:

It's C

Answer:

Its D

Explanation:

I just got it right

What changes does estrogen cause in a female's body?

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it regulates the menstrual cycle, affects the reprise tract, the urinary tract, the heart and blood vessels, bones, breasts, skin, hair mucus membranes, pelvic muscles and the brain

Answer:

it regulates the menstrual cycle, affects the reprise tract, the urinary tract, the heart and blood vessels, bones, breasts, skin, hair mucus membranes, pelvic muscles and the brain

Explanation:

yea pretty much

All of the energy comes from the sun but ______________ capture this energy.
(Copy pasted)
Please answer

Answers

Answer:

You are not showing options so I will guess. Producers, solar panels, greenhouse gases, or dark colors.

Explanation:

The best ones would probably be solar panels, producers, and greenhouse gases.

I would say plants producers or solar panels

why is the skin Cancer rates in Australia so high?​

Answers

The exposure to UV radiation from the sun

Answer: There's a lot of sun all year round

Explanation:

Australia is close to the equator which means it is hotter as the sun is closer. The heat from the sun damages our skin and causes skin cancer. In Australia the rates would be high because people are exposed to the sun more.

please elp answer 8-10 and pick a,b,c, or d for each one please i will give you branlist

Answers

Answer:

We need a picture for it

Explanation:

we need a picture for it

There are three questions:

1. Which of the following statements is NOT true regarding Ambulocetus?

A. It could hear well underwater.
B. It lacked hind limbs.
C. Its teeth resemble modern whale teeth.
D. It was slow.

2. How can scientists determine whether an extinct animal gave birth on land or underwater?

A. Location of the hind limbs of the fetus
B. Position of the nostrils
C. Position of the head of the fetus
D. Location of the fossils

3. Fossils of Basilosaurus resemble that of modern whales because–

A. there are similarities in both anatomy and size.
B. they both have the exact same fossil coloring.
C. they lived during the same time period.
D. there are similarities in where the fossils were found.

Answers

Answer:

B,C,A

Explanation:

The statement that is not true regarding Ambulocetus is it lacked hind limbs. The correct option is B.

What are Ambulocetus?

This cetacean ancestor was semiaquatic. It spent most of its time in the water but reproduced on land. Thewissen worries Ambulocetus natans resembled modern crocodiles in appearance and hunting style, consuming marine fish and maybe ambushing animals that wandered too near the water's edge.

It could have observed prey above water even while submerged thanks to the high, sideways-facing eyes on its head that resemble hippos.

2. Scientists can determine whether an extinct animal gave birth on land or underwater by the position of the head of the fetus.

3. Fossils of Basilosaurus resemble that of modern whales because there are similarities in both anatomy and size.

Therefore, the correct option is B, C, and A.

To learn more about Ambulocetus, refer to the link:

https://brainly.com/question/8982063

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Which description properly describes a step involved in cellular respiration?

Select one:
a. Glucose is created, then the energy gained is transferred to the energy molecule.
b. Carbon dioxide and water are released after the energy molecule is charged.
c. Water is divided into carbon dioxide and glucose.
d. Oxygen is combined with ATP to energize it.

Answers

Answer:

A. Glucose is created, then the energy gained is transferred to the energy molecule.

Explanation:

Respiration could be a metabolism that happens altogether to living organisms. In humans, the energy is made within the body by respiration once one molecule of aldohexose is weakened into six greenhouse gas and 6 water molecules in the presence of oxygen.

will give brainliest!!! The map shows Aśoka’s territorial expansion.




Based on the map, which statement about the expansion of the Mauryan Empire is accurate?

Answers

Answer:

asoka

Explanation:

because is the bigger and is the one that represent more in the image

Which force of erosion would most likely cause large amounts of loose soil to move down the slope of a hill?

Answers

You’re correct answer is gravity
gravity, since gravity is a pulling force, as the hill erodes , gravity would cause the soil to fall

The expression of a trait is directly dependent on the
A) Arrangement of amino acids in the protein synthesized
B) Shape of the subunits in the DNA molecule
C) Number if chromosomes present in the nucleus
D) Sequence of bases coded for by the ribosome

Answers

Answer: B

Explanation:

The question wants to know what the expression is directly dependent on.

The sequence of genetic expression goes like this:

  DNA -> RNA -> protein

If we want to know the root cause of expression, we must look at the DNA, not the RNA or protein, because DNA determines the RNA and protein expression.

 

The  Shape of subunits in DNA -> Sequence of bases coded for by the ribosome with RNA -> Arrangement of amino acids in the protein synthesized.

Why not C: Number of chromosomes present isn't a factor, because most humans, barring those with a genetic disorder, have 23.

B. The expression of a trait is directly dependent on the "Shape of the subunits in the DNA molecule."

What do you mean by expression of a trait?

"Expression of a trait is termed as phenotype and it is dependent on many factors. A particular trait may become recessive if it gets combined with a dominant trait."

What causes the expression of a trait?

"Genes also interact in patterns such as partial dominance or co-dominance, the trait is expressed as a mix between two genes. Those are the possibilities for one gene. Most traits are influenced by many genes, there are many different ways for those genes to influence how the trait is expressed."

What is the expression of a trait dependent on?

"Expression of X-linked traits depends on a number of factors including a dominant versus recessive allele, and the gender of the offspring. One can determine the likelihood of producing a child with a particular trait using a Punnett square."

To know more about expression of a trait here https://brainly.com/question/13281421

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The study of the movements of tectonic plates and the continents above them are either...
..Plate Tectonics
..Sea floor spreading

Answers

Answer: Plate Tectonics


cupidie (✿◠‿◠)

Answer:

It's plate tectonics

Explanation:

Plate tectonics is the definition of tectonic plates moving

Continental plates are __________ than Oceanic Plates
1.) more dense
2.) less dense

Answers

Answer:

Continental plates are less dense than Oceanic Plates.

the answer is “less dense”

Describe how a business such as a supermarket or a department store uses classification to make it easier for its customers to find a particular type of merchandise.

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in a supermarket it is likely that the store will be divided into many categories to ensure the customer is able to find what they are looking for promptly. for example, at Walmart, you may find a clothing section, a toy section, a produce section, toiletries section, makeup section and bakery section among many others. this style of organization allows for customers to know exactly where they must go to find what they are looking for - if they would like to purchase an apple they would go to produce etc.

Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?

Answers

Answer:

In prokaryotes, the DNA (chromosome) is in contact with the cellular cytoplasm and is not in a housed membrane-bound nucleus. In eukaryotes, however, the DNA takes the form of compact chromosomes separated from the rest of the cell by a nuclear membrane (also called a nuclear envelope).

Explanation:

What the first guy above said

Propose an explanation as to why beta cells would have a greater concentration of rough endoplasmic reticulum and ribosomes than some other cell types.

Answers

Answer:

Endoplasmic reticulum (ER) and Golgi apparatus are subjected to mass spectrometry have uncovered over a thousand different proteins assigned to the ER and Golgi apparatus of rat liver. In turn, led to the uncovering of several hundred proteins of poorly understood function and, through hierarchical clustering, showed that proteins distributed in patterns suggestive of microdomains in cognate organelles.

Explanation:

k

Since photovoltaic cells can only covert about 15-20% of the sun's energy to electricity, which of the following terms best describes photovoltaic cells as they currently exist?

Answers

I’m looking for this answer too! I hope we can get a answer soon:(

How does the formation of coal relate to the rock cycle

Answers

Answer:

Coal is a non-renewable source of energy that takes many years to produce. - Metamorphic rocks are formed during intense heat and pressure to: Igneous rocks, sedimentary rocks and other metamorphic rocks. They can also be formed when lava so hot it changes the minerals flows over rocks.

Explanation:

coal is formed within the earth , and can take millions of years to form. it is a non-renewable resource meaning it can run out since it takes so long to renew (make more)

A canyon is a type of landform formed over millions of years as flowing rivers wear away the land and carve out steep cliffs. A person standing at the bottom of a canyon would look up at the tall cliffs and think they were mountains because they are so high. Using this information, the landform at the bottom of a canyon is most like

Answers

Answer:

Has flat ground, and has a river flowing in the middle of it

Explanation:

The river in the middle created the canyon, and the flat land is the small/big space that wasn't used, and stayed flat

If I mated a guinea pig with black fur (dominant) and a guinea pig with white fur (recessive), what would the offspring be if this was an example of Complete Dominance?
A. Gray fur
B. Black fur
C. White fur
D.White and black fur

Answers

the answer would be A
a, grey fur

hope this helps

science question i dont know v.2

Answers

Answer:

Explanation:

wasakaka

Answer:

H. They are along a plate boundary in which plates are currently converging, causing uplift anf steep slopes

Other Questions
Question 17 of 35Finally, after 10,000 years of searching for a planet that could sustaintheir species long-term, the Vulturians had found one. They hadalready attacked the inhabitants and depleted the resources of 400other worlds in their long and cruel history, and now their own kind wason the verge of extinction.But perhaps extinction wouldn't be their fate after all. Their needle-shaped spaceships dropped out of hyper speed and approached thedefenseless-looking planet.For the people of Earth, the summer morning felt the same as anyother when suddenly the sky over every major city -- from New York toCairo to Tokyo - became filled with needle-shaped UFOs. "We come inpeace," a deep voice shouted down from the heavens.Which statement best explains the text's use of dramatic irony?A. When the aliens announce that their intentions are peaceful, thereader is aware that they are lying.B. When the aliens announce that their intentions are peaceful, theaudience is forced to reconsider the information from earlier in thestoryC. When the Vulturians finally discover a new world they can attack,readers are likely to understand that they are named after vultures. Mesopotamians used their natural resources and advances in What is the slope for a linear function that includes the points (2, -1) and (1, 1).A. 2.B. -2C. 1/2D. -1/2PLZ HELP HURRY Which group of city states from West Asia colonized much of the Mediterranean and were named after their famous purple dye?Question 4 options:GreeksPhoenicians EgyptiansAkkadians Please help me? Ill give brainliest Thirty percent of the students in a high school face a disciplinary action of some kind before they graduate. Of those students, 40% go on to college. Of the 70% who do not face a disciplinary action, 60% go on to college. What percent of the students from the high school go on to college EASY WORK!!Plz look at the photo. A student answered 42 problems on a test correctly and received a gradeof 70%. How many (total) problems were on the test, if all the problemswere worth the same number of points? . At a farmers market, two vendors sell fresh milk. One vendor sells 2 liters for $3.80, and another vendor sells 1.5 liters for $2.70. Which is the better deal? * Manufacturers could reduce waste and conserve resources by making products that use lessare difficult to repairuse more materialsare more durableare disposable hello! I am having trouble in health class we are learning about drugs and how they affect the body. how does tobacco ruin the lungs? HELP ASAP, PLEASE!! (Music) What does prime factorization mean to you ? A public service announcement is created to encourage people to briefly stop using their wireless devices. Which is a justification for this announcement?decreases the number of people attending local eventsencourages more states to ban texting while drivinghas families participating in community-sponsored activitiesallocates more time to spotting people who are driving while on the phone please help me:(*will give a brainist* 43) How did Charlemagne improve the learning of his people?A) He promoted reading and writing among the peasants.B) He required all able-bodied men to serve as knights,C) He required church members to learn to read and write.D) He required all of his kingdom to study ancient Greek and Roman texts. GUYS HELP IM STUCK!!!!!!! What role did hitler play in the lives of the hitler youth Write 2 short passages. Both passages will be about the same topic, but each will reflect a totally different tone. Your subject is cleaning your room. The tones you will use are:1. Enthusiastic - this passage should reflect that you feel enthusiastic about cleaning your room.2. Offended - this passage should show that you feel offended by the idea that you have to clean your own room.Each passage only needs to be 3-5 sentences.Plz : I need help for school