our atmosphere contains 78% free

Answers

Answer 1

Answer:

nitrogen

Explanation:


Related Questions

​​​​The desertification of an area from deforestation due to mining gold would be a(n) ___ cost of the gold.
indirect
direct

Answers

Answer: the answer would be indirect

Plzzzz help Creating models to examine concepts is important in science. Some of these are experiments
and only one is a model. Which one is a model?
a
O A heated soda can is cooled rapidly to see what will happen to air pressure.
O An apple is sectioned into quarters to represent the ratio of water to land on Earth.
O Ice cubes are left to melt on different surfaces to find out how materials conduct heat.
O Students conduct a color blindness test with their family members.

Answers

Knowing that a model is considered a representation of something, the correct option is option B, in which the apple represents the Earth. An apple is sectioned into quarters to represent the ratio of water to land on Earth.

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

To answer this question, you can think about a model as a representation of something.

A scientific model can represent an object, a system, a process, a phenomenon, etcetera.

Models are used to explain, predict, or describe natural events. They constitute a significant tool in modern science and are essential to scientific practice.

Knowing this, among the provided options, the one that is a model is option B.

The apple is representing the ratio of water to land on Earth. It is a representation of the earth.

All the other options are experiments performed to see what is going to be the result.

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

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Taste action potentials move through cranial nerve number ____ to the brain.

Answers

Answer:

Cranial Nerve #9

Explanation:

Cranial nerve number 9 is also called the glossopharyngeal nerve. Taste perception is really cool I recomend studying this topic well!

In your own words explain why the sky is blueI

Answers

Answer:

As white light passes through our atmosphere, tiny air molecules cause it to 'scatter'. The scattering caused by these tiny air molecules (known as Rayleigh scattering) increases as the wavelength of light decreases. ... Therefore, blue light is scattered more than red light and the sky appears blue during the day.

Explanation:

Thank You I hope it's helpfull...

if the chloroplasts of a plant cell are damage, which will it be unable to do?​

Answers

Answer:

Become Green

Explanation:The Organelles that are green will be destoryed causing the plant not to be able to become green

Explain how cells theory development

Answers

Answer:

The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.20-Aug-2020

Explanation:

hope this. helpes

Please mark Brainliast

Cell division vocabulary .

Answers

Answer:

Chromosomes-a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.  

Chromatin-the material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.

Chromatid-each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.

Centromere-the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.

Centriole- a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.

Explanation:

How can i earn money from this app?

Answers

Answer:

u dont earn money from brainly. the point is altruistic help

Explanation:

if u mean something else, provide context and ill leave a comment with the correct answer

compare a frogs internal organs to a humans internal organs

Answers

Answer:

Answer is below

Explanation:

Frogs and humans share the same basic organs. Both have lungs, kidneys, a stomach, a heart, a brain, a liver, a spleen, a small intestine and a large intestine, a pancreas, a gall bladder, a urinary bladder and a ureter. ... On the whole, their organ structure is similar, but frogs have considerably less complex anatomies

What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?

Answers

Prokaryotic, it has a flagellum and no nucleus.

This is confusing, help please

Answers

Answer:

C: the song bird

Explanation:

Birds follow a type II or in your case a type B survivorship curve. Unlike elephants which are a Type I or Type A, and the bugs are Type III or Type C in your case.

Answer: I think it would be (C)

Explanation:

I really hope this helps

The skeletal system of animals provides structure and support. Which cell part provides a similar function in a plant cell? a. pili b. large central vacuole c. Golgi apparatus
d. cell membrane

Answers

Answer:

b. large central vacuole

Explanation:

it maintains pressure against the inside of the cell wall, giving the cell shape and helps to support the plant.

like the person said above cell membrane

PLS HELP, HELP HHHHEEEELLLLPPPP
1) How long is it's growing season for carrots.
2) How long is it's growing season for corn.

Answers

Answer:

2-4 months for carrots and about 120 days for corn

Explanation:

Cows, buffaloes and wildebeest are closely related enough that the same disease can harm all of them true or false

Answers

False
Should be the right answer because we can see mutations in humans can kill some and do nothing to others

What must organisms be adapted to so that they can live in an estuary?
both low and medium salt concentrations
medium and high salt concentrations
high salt concentrations
low salt concentrations

Answers

Answer:

Both low and Medium salt Concentration.

Two key adaptations they have are the ability to survive in waterlogged and anoxic (no oxygen) soil, and the ability to tolerate brackish waters.

Hope this helps !!

Answer:

both low and medium salt concentrations

Explanation:

took the test

If white wool (W) is dominant over black wool (w), can two sheep with black wool produce an offspring with white wool? Explain your answer.​

Answers

Answer:

No, the offspring of two black sheep cannot have white wool. Since the black wool allele is recessive, both parents have to be recessive (ww) and so do not carry the dominant white wool allele. The only allele the parents can pass to their offspring is the black allele.

I agree white wool dominant over black

At which temperature could air hold the most water vapor?
A. 2°C (36°F)
B. 24°C (75°F)
C. 35°C (95°F)
D. 13°C (55°F)

Answers

Answer: C: 35° (95°F)

Explanation: The hotter the temperature, the more water vapor air can hold.

Which of the following symptoms is characteristic of a manic mood state?
a) Cycling between elation and depression
b) Catatonic excitement
c)
Disorganized speech in the form of a "word salad"
d) Extremely high self-esteem
)

Answers

The symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement

What is the Manic Mood State?

The manic mood state is a phase of bipolar disorder, which is characterized by catatonic symptoms such as heightened energy, euphoria, loss of sleep, excessive talk, and being hyperactive.

Thus, the symptom that is a characteristic of manic mood state is therefore: b) Catatonic excitement

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If a nerve cell stopped functioning, the cell would

Answers

Answer:

stop sending signals to the brain

Explanation:

In which of the following ways can albert reduce the resources he consumes

Answers

Answer:

where is option man?

please,send option also

How does natural selection change the frequency of genes or traits over many generations? Biology students conducted an experiment mimicking genetic variation and coloration. Students used different colored beans to represent animals that might be prey: mice, for example. A student in each group was the predator: a hawk. Beans (mice) were randomly scattered on multicolored floor tiles, each color within four tiles. The hawk collected mice (beans) for 10 seconds. Mice not eaten reproduced. Three generations of data a shown in the table.
Genetic variation helps to drive natural selection and potentially, evolution. Red, white, and striped beans (mice) represent offspring that are the product of meiosis and sexual reproduction. Black and speckled beans (mice) are the result of mutations. Using the student data analyze the effects of these mutations on natural selection.

A) The color mutations provided a survival advantage to these two populations of mice.

B) The advantage of the mutations is dependent on the environment and external conditions.

C) While mutations provide genetic variation they did not play a role in natural selection.

D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Answer:
D) The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Answers

The speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

Natural selection refers to the observation that organisms that are more suited and adapted to their environment live long enough to survive and reproduce thereby passing on their favorable characteristics to their offspring.

The mutation in which the mice became speckled was shown to be an advantage from the table. Hence, the speckled mutation provided an advantage while the black mutation was a disadvantage for survival.

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To remember abdominal muscles, explain what TIRE stand for the phrase “spare TIRE”.

Answers

Answer:

Spare tire in abdominal area is large amount of fat deposits usually derived by poor diet and lack of exercise

The spare tire is excess body fat stored around the midsection when our calorie balance is off.

It is caused  by an imbalance between calorie intake and output, poor diet and insufficient activity are the main culprits of belly fat.

Why excess fat is not good for health?Weight gain and obesity.Heart disease and related issues, like high blood pressure.High blood cholesterol levels and triglyceride levels.Metabolic syndrome.Prediabetes.Type 2 diabetes.Insulin resistance.Fatty liver disease.Stroke.

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Which of the following are unique to animals? Flagellated gametes, nervous system signal conduction in muscular movement, heterotrophic, the structural carbohydrate chitin

Answers

Answer:

Nervous system signal conduction in muscular movement

Explanation:

Hope i helped :)

Which of these forms when air moves in the directions shown by the arrows
in the diagram?

A ) Valley Breeze
B) Land Breeze
C ) Mountain Breeze
D ) Sea Breeze

Answers

Answer:

C.

Explanation:

Please do brainless :)

Mountain breeze refers to the fact that the surface breezes are coming from the mountain and blowing into the lowlands. Thus, option C is correct.

What is the movement of air in mountain breeze?

The air cools during the night and flows into the valley from the mountainside.

As a result, the breeze blows in the other direction; it travels from the mountains to the plains and valley floor. This wind is therefore referred to as the mountain breeze.

As the air rushes in to fill the space, the air pressure decreases and a gust of wind is produced. A valley breeze, on the other hand, develops when cooler air in the valley falls to fill the space left by the warm air rising.

Therefore, Mountain Breeze in which air move from high pressure to low pressure.

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Find the similarities or interesting facts about system of modern phones and human brain.​

Answers

The human brain and that of the computer(Modern Phones) are similar is so many ways, bellow are some highlighted facts between the human brain and the computer

They used electrical signals to send messagesBoth transmit information.Both have a memory that can growBoth can adapt and learn.Both have evolved over time. Both need energy. Both can be damaged. Both can change and be modifiedBoth brains and computers are studied by scientists.

Learn more about the human brain and computer

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i need help with understanding what this is

Answers

What Is There Is Nothing No Picture Or Problem So Can Anyone Help If Nobody Knows What Your Talking About

Which is a type of mining that is very dangerous but doesn't disrupt much of the surface? A Surface mining B. Strip mining C. Mountaintop removal D. Long wall mining​

Answers

Answer:

Surface mining.

Explanation:

Surface mining can severely erode the soil or reduce its fertility. It can also pollute waters or drain underground water reserves; scar or altar the landscape; damage roads, homes, and other structures; and destroy wildlife.

Animals do not have inner feelings that tell them when to eat.


True or False

Answers

Answer:

true

Explanation: because if they did then that would be crazy, its like how would they have feelings that tell them what to eat and what not to eat, yk what i mean? im sorry if this is wrong.

Which of the following characteristics are necessary for a fossil to be a good index fossil? (Choose all that apply)
had a broad geographic distribution
easy to identify at the species level
an invertebrate
short-lived

Answers

Answer:

A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms.

Explanation:

Fossil to be a good index fossil are:-

Had a broad geographic distributionEasy to identify at the species levelAn invertebrateShort-lived

What is a fossil?Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not the remains of the organism.They are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils.

Hence, All the given option are correct.

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NEED ANSWER! WILL BRAINLIST!


•During the mining process, which step immediately follows separating the mineral from the waste rock?


A. refining

B. distribution

C. crushing and milling

D. drilling and blasting

Answers

Answer:

C

Explanation:

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