The oldest rocks on earth date from about 4.2 billion years ago. What does this suggest about the interval between 4.6 billion years ago, when the earth started to form, and 4.2 billion years ago ?

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Answer 1

Answer:

4.6 billion hehehehhehe


Related Questions

ready-to-eat tcs food must be date marked if it will be stored for longer than:

Answers

Given what we know, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours.

What is TCS food?TCS food refers to food that must be stored in temperature-controlled environments to ensure safety.These foods, if not stored properly and at the correct temperatures can cause sickness to the consumers.

Why does it need to be date-marked?The reason the foods need to be date-marked is to relay information to the potential consumer as to by when the food should be consumed. This is done to ensure that if stored correctly, the food does not have time to spoil and cause health risks for consumers.

Therefore, we can confirm that ready-to-eat TCS food must be date marked if it will be stored for longer than 24 hours in order to protect the health of the consumers.

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What safety precautions must I take in a minerals investigation?

Answers

Safety goggles, gloves, push hair back if long

Please help, i'm failing biology and REALLY need honest answers.
( DNA unit test, unit 6 lesson 13. CONNEXUS )

How are new viruses made?(1 point)

A. asexual reproduction

B. sexual reproduction

C. viral DNA or RNA copied by viral cells

D. viral DNA or RNA copied by a host cell

Answers

Answer: i’m pretty sure it’s C

Explanation:

C
Please mark as brainlest so I can rank up

Can somebody help please due today

Answers

Answer:

Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.

Answer:

Explanation:

Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. Their ages can be established by comparing the fossils in each layer.

Credits to the person under me i just need points

(pretty sure its correct tho)

what type of plate boundary interactions take place when the tonic plates slide past each other
convergent boundaries
divergent boundary
subduction boundaries
transform boundaries

Answers

Transform boundaries is the answer because convergent boundaries move together and hit into each-other and divergent boundaries move apart

Using the explicit formula, calculate how far the students will be swimming on week 10 using Ernest's schedule.

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Ernest would be swimming at 3.25 units on week 10

The explicit formula is given as:

[tex]a_n = a_1 + (n - 1) \times d[/tex]

Also, we have the following parameters

[tex]a_1 =1.0[/tex] -- the initial distance

[tex]d =0.25[/tex] --- the difference between concurrent distances

In week 10, the value of n is 10.

Next, substitute 10 for n in the explicit formula [tex]a_n = a_1 + (n - 1) \times d[/tex]

So, we have:

[tex]a_{10} = 1.0 + (10 - 1) \times 0.25[/tex]

Subtract 1 from 10

[tex]a_{10} = 1.0 + 9 \times 0.25[/tex]

Multiply 9 by 0.25

[tex]a_{10} = 1.0 + 2.25[/tex]

Add 1.0 and 2.25

[tex]a_{10} = 3.25[/tex]

Hence, Ernest would be swimming at 3.25 units on week 10

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What are Chromatids in biology

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Answer:

A chromatid is one of two identical halves of a replicated chromosome. During cell division, the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.

Explanation:

Which definition best explains the term gene expression?

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Answer:

Answer:

Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. ... Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.

OR

Gene expression is. the activation of a gene leading to the transcription, translation and synthesis of a specific protein.

what is the main function of the cell wall in a plant cell

Answers

Answer: provides tensile strength and protection against mechanical and osmotic stress

Explanation:

The main function is so that it protects the cell and strengthens it

Mercury is found in a food chain. Which organism would have the highest concentration?
a
A. Bacteria
O B. Shrimp
O C. Algae
O D. Shark

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C. A shark would have the highest concentration

what is supplemental health insurance for elders called?

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Answer: Medigap

Explanation:

Can you use cheetahs to represent Photosynthesis or Cellular Respiration?

Answers

Cellular Respiration

In deserts there’s a strong environmental pressure to conserve water. How did cactuses evolve to meet this pressure?

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Answer:

Cacti evolved in the way that they are able to hold watter within themselves and their cells.

Explanation:

Cactuses have evolved in such a way that their roots and leaves hold water as long as possible. This gives the capability of cacti to meet this environmental pressure in order to conserve water.

What are the special adaptations of the cactus?

Under desert climates, cacti have various numerous unique adaptations in order to facilitate their survival in the same habitat. It includes its roots, leaves as well as stems that enable it to thrive in desert environments.

These adaptations include: Leaves are reduced to spines to reduce water loss through transpiration. Wide and deep roots absorb rainwater on the surface and reach the underground deep water.

Therefore, cactuses have evolved in such a way that their roots and leaves hold water as long as possible.

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#SPJ2

A. Modified TRUE or FALSE: Write TRUE if the statement is correct. Otherwise, change the underlined word/phrase to correct the statement.

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Answer:

both are true

true

true.......

Can someone explain to me what flowering time is?? And how to control flowering time???

Answers

Answer:

Flowering time refers to the amount of time the plants will spend in the flowering stage. It begins when you switch your lights to a 12/12 schedule and ends when the buds are ready to harvest. ... In this case, the actual flowering time (as understood by most breeders) would be 2-3 weeks longer. so the flowers will spend time in differents parts of different stages

A dramatic change in the life cycle of plants is the transition to flowering, which is triggered by both environmental signals, as temperature and photoperiod, and endogenous stimuli. so it would just 2 be to watch over there environment and what u are doing 2 them

Explanation:

Answer:

Flowering time is the amount of time that a plant will stay in it's flowering stage. the flowering time of its life will reach 12 hours or less of light per day.

It's controlled by environmental conditions and development regulations, such as temperature, photoperiod and endogenous stimuli

hope this help's and have a good day :)

What is the single greatest threat to biodiversity?

Answers

Answer:

Habitat loss

Explanation:

Habitat loss is the single greatest threat to biodiversity on Earth today and in fact it is the second largest threat to our existence on this planet next to Climate Change.

On average, men have a basal metabolic rate (BMR) of 1.0 kilocalorie per kilogram per hour. Lawrence weighs 198 pounds. Calculate how much energy Lawrence expends for basal metabolism per day.

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The energy Lawrence expends for basal metabolism per day is 2,160 kilocalories per day.

Basal metabolic rate is defined as the amount of energy that is used when an individual is at rest.

This energy is used for life sustaining functions such as:

breathing,

circulation,

nutrient processing and

cell production.

To calculate the Basal Metabolic Rate for Mr Lawrence,

Lawrence weight = 198 pounds

60

(convert pounds to kilogramme)

1 pound = 0.453592kg

198 pounds = x

xkg = 0.453592 × 198

= 89.8 kg

But BMR for average men = 1 kilocalorie per kilogram per hour.

That is, 1 kilocalories = 1 kg per hour

x kilocalories = 89.8 per day

Therefore for a day = 89.8 × 24 ( 24 hours = 1 day)

= 2155.469184

approximately. = 2,160kilocalories per day

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Aristo was riding in a car and noticed a pond that was covered in algal blooms due to excess phosphorus in the water. Which of these other features in the landscape could be the reason for the high levels of phosphorus? many cars cow pasture solar panels forest.

Answers

Algae blooms are caused by an oversupply of nutrients like to water bodies, causing eutrophication. In the exposed example, a reason for the high levels of phosphorus is option B. Cow pastures.

-------------------------

Eutrophication is a biological process produced in water by an oversupply of nutrients or organic matter.

The source of these high nutrient levels, especially nitrogen and phosphorus, are anthropogenic activities.

This oversupply favors phytoplankton multiplication, especially cyanobacteria.

Cyanobacteria can grow in seawater, but blooms mainly occur in freshwater where the salinity level is low.

These algae species that affect freshwater bodies are microscopic, photosynthetic organisms.

Blooms of cyanobacteria reflect the sanity state of water and its abiotic characteristics. They cause severe disasters in water biota and affect human health.

This overgrowth leads to an enhance in primary productivity and reduces the pass of radiation to deeper strata. This fact affects biota in deeper zones.

Gradually sedimentation begins, caused by the death of some vegetable organisms that sink in the bottom.

These sediments suffer decomposition in the presence of oxygen.

When oxygen disappears, anaerobic bacteria act and produce fermentation.

Phytoplankton overgrowth on the surface and fermentation process in the bottom, originate toxic compounds that can damage the animals in the water body and humans that get in touch with this water.

Animals die, creating more sediments in the bottom where there are anaerobic conditions.

The lack of oxygen and light continued to increase in decomposition, and fermentation produces a bad smell and toxicity.

Concerning the sources of nutrients that might be causing these events, we can mention, among others, cow pasture.

Cow pasture increases the levels of phosphorous on the ground, which ends in water streams, and from there to ponds or lakes.

-----------------------------------

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Answer: cow pasture

Explanation:

Prokaryotes and Eukaryotes share which
of the following structures?

DNA, cytoplasm, ribosomes, cell membrane

DNA, cytoplasm, ribosomes, mitochondria

nucleus, cytoplasm, ribosomes, mitochondria

Answers

Answer:

Dna,cytoplasm,ribosomes,cell membrane

Explanation:

how the CO₂ in the atmosphere is changed as a result of the wildfires?

Answers

Answer:

Forests capture carbon from the atmosphere in the trees and soils. ... When forests burn, vast amounts of the stored carbon is emitted.

Hope that helped. x

haemoglobin is presented in........................... cells

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Red blood cells. It is used to carry oxygen.

when taking a blood pressure reading which reading indicates the greatest force on the walls of the artery?

Answers

Answer: Systolic blood pressure

Explanation:

Why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas (N2)

Answers

Nitrogen is a limiting plant nutrient because the bulk of the available nitrogen in the atmosphere is not usable by plants.

Plants are not able to make use of the nitrogen in the atmosphere directly. Atmospheric nitrogen needs to be converted into usable forms before it can be accessed by plants.

The conversion of atmospheric nitrogen to usable form by plants is known as nitrogen fixation and this is achievable by the activities of certain bacteria.

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WILL GIVE BRAINLIEST IF CORRECT PLEASE I NEED HELP!

Answers

Answer:

CBADE

Explanation:

The fault has an intrusion (D), and the oldest layers are on the bottom.

escribe ONE way that the use of rodenticides affects the kit fox population AND explain how the size of the kit fox population is affected.

Answers

One way that the use of rodenticides affects the kit fox population will be a

reduction in the population.

Foxes are secondary or tertiary consumers which feeds on smaller animals

such as rodents in the ecosystem. The use of rodenticides will kill and

reduce the number of rodents available for food.

The reduction in the rodents means lesser source of food for the foxes and a

decrease in the population. The size of the kit fox population is affected

because a larger size being more affected than the ones with a smaller

size/population.

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why is sunlight important for life on earth

Answers

Answer:

drives weather, ocean currents, seasons, and climate

Explanation:

The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis. Without the sun's heat and light, life on Earth would not exist.

during the process of cellular resperation energy is released from

Answers

Answer:

glucose

Explanation:

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate)

help me please help ​

Answers

Answer:

1) Predation

2) Competition

3) Symbiosis

Explanation:

Answer:

1. Predation

2. Competition

3. Symbiosis

Explanation:

HELP ME ASAP


A stray dog is brought into Destiny's clinic. The poor thing is eaten up with fleas, and she can see that it has terrible sores on its stomach. After giving the dog topical medication to kill the fleas, she also prescribes antibiotics to kill the bacteria in the sores. Which sentence BEST explains how these bacteriI were able to infect the poor dog?
A. The bacteria were epiparasites that were living inside the fleas and then transferred to the dog when the fleas bit him.
B. The bacteria were left behind when the fleas hatched from their eggs and embedded into the dog's skin.
C. The fleas' bites caused itching, leading the dog to scratch the skin and break the surface, providing a home for bacteria.
D. The antibiotics are being given to kill the bacteria, which is the larval stage of the fleas.​

Answers

C. The fleas' bites caused itching, leading the dog to scratch the skin and break the surface, providing a home for bacteria.

An estuary is _______.

For environmental science plz helpp

Answers

Answer:

A

Explanation:

Answer:

a partially enclosed coastal body of water (usually at the mouth of a river) where fresh water from the river and salt water from the sea mix.

Explanation:

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