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What happens when two
protons get close together?
A. They are attracted to each other.
B. They repel each other.
C. Nothing happens.
Answer:
they repel each other
Explanation:
in basic chemistry:
protons repel other protons
protons are attracted to electrons
electrons repel electrons
Answer:
B. they repel
Explanation:
I'm learning the same thing lol
i need some help on this i dont know can someone plz help me
Answer:
D is your answer I believe
Which pair of waves could overlap to produce a wave with a higher amplitude through interference?
Answer:
D: Two waves of the same amplitude with crests that are perfectly aligned
Explanation:
A P E X
Which shows the levels of organizational hierarchy listed from least complex to most complex?
O organism, population, community
O species, ecosystem, community
O population, community, species
O organism, community, population
If a sample originally had 120 Adams of carbon 14 how many atoms will remain after 17,190 years
Answer:
15 atoms
Explanation:
About 15 atoms out of the 120 Adams would remain.
Generally, the half-life of a substance is the time it takes for one-half of that substance to disintegrate.
Carbon 14 has a half-life of approximately 5,730 years. 17,190 years means that the sample had stayed for 17,190/5,730 which is equal to 3 carbon-14 half-lives.
Out of 120 Adams,
the first half-life will reduce 120 to 60 Adamsthe second half-life will reduce 60 Adams to 30 Adamsthe third half-life will reduce 30 Adams to 15 Adams.Hence, at the end of the 17,190 years, approximately 15 Adams would remain.
how does the respiratory and digestive system work together to maintain homeostasis
The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.
HOPE IT HLPS UH WELL✌✌HELP PLEASE
At Love Canal in the 1970s, there was an environmental disaster. In response, the Superfund law was passed. Why can we view Love Canal and the creation of the Superfund as a positive environmental event?
A. It allowed the EPA to find toxic waste sites and force the responsible parties to clean up the sites.
B. It provided money to businesses responsible for toxic waste sites to clean up their pollution
C. It helped boost the economy among those waste sites
D. It helped identify toxic waste site and move people away from them
Answer:I’m stuck on the same question
Explanation:
Please someone helpp pleassseee pleaseeee
Answer:
Honeybees and Flowers
which of the following is an object used in relative dating
A-Carbon 14
B-Daughter Isotope
C-Index Fossil
D-Parent Isotope
i know for sure it’s not A
The object that is used in relative dating is Index Fossil. Thus, option C is correct.
What is Fossil records?
Fossil records are described as the position of found fossils all through the surface or the layers of the earth. The older the fossils are, the deeper it is found. Fossil records are also considered to be gathered information about the total number of the discovered fossils and the data obtained from them.
Fossil records are important guides to determine how life existed before. If you are to assemble a fossil, you will be able to see and tell the evolutionary changes that happened over the past years. Fossil records are evidences pointing out that life before is totally different from now.
Index fossils are fossils that are common yet were only present for a brief time. By comparing a rock layer to other rock layers, index fossils enable scientists to determine the relative age of a rock layer. Organisms that are still alive today yet have undergone little alteration over millions of years are known as living fossils.
Therefore, The object that is used in relative dating is Index Fossil. Thus, option C is correct.
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The workers who paid a rate for every day they work are known as
Answer:
piece work
Explanation:
I hope this is right
what is the next number of the sequence?
0.99, 9.9, 99, 990, ____
I believe the next number is 9900
Reason: To get the next number in the sequence, move the decimal point
0.99 —> 9.9
9.9 —> 99.
99. —> 990.
990. —> 9900.
Sorry if wrong
Pls I need answers at least one answer of any of the questions
all you need is in the photo
Why is biodiversity important for ecosystems?
Answer:to stop from extinction
Explanation:
Can someone please helpppppo I’ll mark the brainliest
Answer:
C [the third one btw]
Explanation:
He believed that evolution gradually [slowly] happened over time.
Hope this helps :D Have a great day
The freezing point of a mixture of water and salt is
A. higher than that of pure water
B. the same as that of pure water
C. lower than that of pure water
D. none of the above
Answer:
lower
Explanation:
salt makes thing freeze faster
Answer:
A
Explanation:
Because when you mix a mixture and pure substances it’s higher
Which of the following statements about plankton or nekton is NOT correct?
a. Nekton are active swimmers.
b. Phytoplankton are important primary producers.
c. All plankton are closely related to plants.
d. Plankton drift or swim weakly.
e. Zooplankton are heterotrophic plankton.
Answer:
B is the answer
Explanation:
plants make their own food and in this case phytoplankton aslo plankton are known as plants
What is the term for traits an organism possesses that help it survive better?
a.
Permutations
b.
Mutations
c.
Generations
d.
Adaptations
Answer:
d. adaptations
Explanation:
Match each underlined word to its correct meaning based on the context of the sentence. Tom had long been picking his way cautiously through this treacherous forest; stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors. He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering, but what it was she forbore to say. At this propitious time of public distress did Tom Walker set up as a usurer in Boston.
Answer:
A. Tom had long been picking his way cautiously through this treacherous forest; stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs. - 3.dangerous.
B. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors. - 4.bleak.
C. He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering, but what it was she forbore to say. - 2.conciliatory.
D. At this propitious time of public distress did Tom Walker set up as a usurer in Boston. - 1.favorable .
Explanation:
The given underlined words in each sentence are-
1. "Precarious" refers to something unstable, unconfirmed, dangerous, uncertain, unreliable. So, when used in the given sentence, it suggests the dangerousness of the foothold that Tom had to depend on.
2. The word "dreary" is also used for something dull, uninteresting, bleak. It is used to describe the banal, cheerless memento of the fight the Indian warriors had given.
3. "Propitiatory" is another word used to describe something that is like a conciliatory offering, a token of appeasement, or trying to please someone or something. In the given sentence, it is used to describe how she will be offering a conciliatory act to him.
4. The word "propitious" is synonymous with something favorable, advantageous, presenting a promising idea. And in its use, the sentence presents how the public distress is favorable for Tom Walker to set up his office.
Answer:
- 3.dangerous. Tom had long been picking his way cautiously through this treacherous forest; stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs.
- 4.bleak. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors.
- 2.conciliatory.
He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering, but what it was she forbore to say.
- 1.favorable . At this propitious time of public distress did Tom Walker set up as a usurer in Boston.
Explanation:
Please help As fast as you can!
Which are the following statements are TRUE when concerning cells?
A: Prokaryotic cells can only produce eukaryotic cells
B:All cells come from pre-existing cells
C:Cells must always reproduce with other cells
D:Plant cells can only reproduce with animal cells
Answer:
I think it will option b hope it helps
True or false: recycling can positively impact Earth's spheres.
Answer:
true
Explanation:
Answer:
True
Explanation:
Recycling provides big benefits to the planet's atmosphere by reducing overall materials consumption. ... The more we recycle, the more we reduce the impacts of global warming on the earth's climate. Animal Safety. Ocean-dwelling animals are threatened by the large amounts of plastic trash dumped into the seas every year.
What would be the concern if a high percentage of cells were in some phase of Mitosis?
Answer:
When cell division goes wrong, harmful mutations affect the daughter cells
When these errors are not corrected, one of the daughter cells will be born lacking a particular chromosome while the other will inherit an extra copy of the chromosome
Explanation:
Water that falls onto land surfaces is either soaked into the ground or flows downhill into a body of water. The water that soaks into the ground is called groundwater.
Soil and rock that allow this water to pass through them are called ________.
A. aquifers
B. compacted
C. permeable
D. runoff
The capacity of a rock or other substance to let the passage of water is known as permeability, hence option c is correct.
What is groundwater?Groundwater may readily flow through permeable materials because the pore space is linked throughout the rock or sediment. Mud and clay are examples of materials with great porosity yet very limited permeability.
An aquifer is a water-bearing rock that easily transfers water to wells and springs, the aquifers may be dug into and water pumped out.
Therefore, water that falls onto land surfaces flows into water bodies or it may be soaked in the ground, this water flows through the soil and rock which are permeable, hence option c is correct.
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NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?
2.How do you think that the one species of finch evolved into many different species, each with its own advantages?
3. In what ways do these advantages help the finches to survive and reproduce?
4. What might have happened if the finches didn't evolve into many different species?
Answer:
1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.
2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection
3. Medium ground finches with larger beaks could take advantage of alternate food
4. three species of Darwin's tree finches have been known to inhabit Floreana but no birds singing that song on Floreana have been heard in many years.
Explanation:
which layer of the earth is made out of melted metal?
The outer core. A molten nickle- iron alloy.
What is the phase change from gas to liquid?
A. Sublimation
B. Condensation
C. Vaporization
D. Transpiration
Answer:
Condensation
Explanation:
Condensation is the phase change from gas to liquid. For example, water vapor condenses when you are taking a shower because wet spots show up on a mirror after taking a shower.
Answer:
Condensation
Explanation:
Sublimation is when a solid turns into a gas. Condensation is when water in the air collects to form droplets that gather on a surface/object. Vaporization is when a liquid forms into a gas. Transpiration is a thing in plants where water transfers throughout the plant.
Can someone help me with the question please.
Answer:
B Sun > Algae > Shrimp > Red drum
Which is located at the beginning of a gene?
terminator
promoter
mRNA
intron
6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.