Francine is developing a model of the carbon cycle, which involves the movement of carbon among various Earth systems. She begins by drawing the diagram shown below. Her friend Byron evaluates the model, and suggests that she thicken the arrow leading from fossil fuels to the atmosphere. His reasoning is that fossil fuels are being burned at a much faster rate than natural processes are restoring them. If Francine adopts Byron’s suggestion, how could her model be used to explain a significant change to Earth's systems?
Answer:
After adopting the suggestions of Byron the new or revised model would show that using fossil fuels at a rapid rate would lead to higher inputs of carbon dioxide to the atmosphere which will not be removed by the natural process of removing the excess amount of the carbon dioxide by the process of the photosynthesis and other.
The carbon dioxide would increase due to this and cause trapping of the solar heat in the atmosphere which leads to the greenhouse effect to warm the earth. That ultimately changes the climate of the earth.
PLEASE HELP MEEEEE QUICKLYYYY
a group of students found the specific gravity of a pice of galena to be 7.8. The accepted value for the specific gravity of galena is 7.2 find the % of error in the student's work
Answer:
Percent error = 8.3%
Explanation:
Given data:
Accepted value of specific gravity = 7.2
Measured value of specific gravity = 7.8
Percent error = ?
Solution:
Percent error = measured value - accepted value / accepted value × 100
Now we will put the values in formula.
Percent error = 7.8 - 7.2/7.2 × 100
Percent error = 0.6/7.2 × 100
Percent error = 0.083 × 100
Percent error = 8.3%
place the following molecules in the order smallest to biggest
Answer:
NH₂⁻<NH₃<NH₄⁺
Explanation:
Hello.
In this case, regarding the molecules:
NH₄⁺, NH₃ and NH₂⁻.
Which are ammonium, ammonia and amide, in order to rank them in terms of how big the angles are, we need their molecular geometry as shown on the attached picture. As you can see, the geometry of ammonium is tetrahedral with an angle between H bonds of 109.5°, the geometry of ammonia is trigonal pyramidal with an angle between H bonds of about 107° and the geometry of amide is bent with angles of 104.5°.
Therefore the order from smallest to biggest is: NH₂⁻<NH₃<NH₄⁺.
Best regards.
What is a product of a dehydration synthesis reaction for lipids?
Answer:
try the app conects
Explanation:
The_____ side of a sand dune is the side without wind.
O deflation
slip face
Owindward
Oshear
Answer:
slip face is the answer
Answer:
Slip face
Explanation:
The two sides of a sand dune are the windward side and the slip face side. The slip face side is the side without wind. Accumulation of sand occurs on the windward side.
Which question can be answered by science?
A. What is the effect of pesticides on the environment?
B. Why do you think people should use paper bags?
C. Should people be forced to reuse plastic bags?
D. Should government be regulating scientific research?
Answer:
A. What is the effect of pesticides on the environment
Explanation: I just took the test
what structure help to keep the stem's shape and up right position?
Answer:
The cell wall.
Explanation:
Weather conditions can be predicted based on the shapes and heights of clouds cumulus clouds like the one shown in the picture or large white clouds that float low across the sky when present what is the weather most likely like??
A) cold
B)Fair
C)Humid
D)Rainy
Answer: the answer is b
hope this helped
A group of students studied four different cell specimens under a microscope and recorded information about each cell
in this table.
Characteristics of Four Cell Specimens
Cell Membrane
Chloroplasts
Yes
Yes
Cell Specimen Cell Wall
Cell 1
Yes
Cell 2
No
Cell 3
Yes
Cell 4
No
DNA in Nucleus
Yes
Yes
Yes
No
Yes
No
No
Yes
-
Yes
Which cell specimen is a prokaryote?
A Cell 1
B Cell 2
C Cell 3
Answer:
Cell 3
Explanation:
One of the unique main characteristics that differentiates a prokaryote from a eukaryote is the absence of presence of nucleus in their cell, and where their DNA is found.
In prokaryotic cells, nucleus is absence. The DNA of prokaryote is not found in a nucleus, rather, it is contained in a region referred to as nucleoid.
Therefore, the specimen that does not have DNA in nucleus is definitely a prokaryote.
Cell 3 is a prokaryote.
Which factors directly affect the climatic conditions of any particular area?
distance from the equator
year of origin of the cities in the area
shape and height of the continental land mass
agricultural yield of the area
Answer:
distance from the equator and shape and height of the continental land mass
Explanation:
The factors that directly affect the climatic conditions of any particular area are given below.
distance from the equatorshape and height of the continental land massWhat are examples of climatic situations?The climate depends on numerous elements like rainfall, temperature, humidity, altitude, and wind speed. Rajasthan has a warm and dry climate because of less rainfall. Northeast India gets predominant rainfall and has wet weather. International locations like Cannada are polar regions and they have cold weather.
What are the 6 climatic conditions?polar, temperate, arid, tropical, Mediterranean, tundra.Learn more about climatic conditions here https://brainly.com/question/17922964
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Select the correct answer from each drop-down menu.
Because vitamins carry out various functions in our body, deficiency of different vitamins can have varied effects on the body. Vitamin C aids the synthesis of collagen and plays a role in
. So, the deficiency of vitamin C may result in
.
The deficiency of vitamin C results in a disease known as scurvy. Hence, a person suffering from a deficiency of vitamin C will have scurvy.
What is Vitamin C?
Vitamin C is a water-soluble vitamin that is found in the citrus fruits such as lemons, oranges, and pineapple. It is also known as ascorbic acid. It is used as a cofactor for the interlinking of collagen fibers. It plays important role in maintaining the integration of the muscles and collagen.
It is also an important antioxidant in the body. It encounters the free radical released in the body. It is also used in skin serums as it tightens the skin. Chewable supplements are also available.
Vitamin C is also known as ascorbic acid, its deficiency leads to the loosening of skin and scurvy.
Learn more about Vitamin C, here:
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What is the concentration of a solution
A student uses a telescope to view stars at night. The student notices some of the stars are different colors. The color of a star is determined MOST by its
Select one:
a. size.
b. distance from Earth.
c. mass.
d. temperature.
The color of a star is determined most by its mass. Thus, option C is correct.
On which factor brightness of the star depends?The brighter the star is, the closer it will be from the Earth. Hence, the brightness of a star depends upon the distance between the star and the Earth. The color of a star tells you how cool or hot it is. Blue colored stars are cool while red colored stars are hot (like sun).
A star is a celestial object that produces light and heat through nuclear fusion reactions in its core. Stars are made up of hot, dense gas and have their own gravity, which helps them maintain their shape. They are classified based on their temperature, size, and luminosity.
Most stars are part of a galaxy and are found in clusters called star systems. The sun is a star and is the closest star to Earth. Stars play a crucial role in the evolution of the universe and are essential for the formation and survival of planets, including Earth.
Therefore, The color of a star is determined most by its mass. Thus, option C is correct.
Learn more about evolution on:
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Students will analyze information about how the reduction in numbers of an individual species can affect an entire ecosystem
If one population dies out, all the populations that depend on that species for food may also die out. A change in one population affects the entire community because all the populations of a community depend on each other.
You are asked to study a new inhibitor of oxidative phosphorylation. When it is added to a suspension of mitochondria carrying out this process, both ATP synthesis and oxygen consumption are inhibited. You suspect that the inhibitor blocks either the F-type ATPase or the electron transport chain. You can perform an experiment that measures the consumption of oxygen and the synthesis of ATP by isolated mitochondria. In one paragraph (6 sentences maximum), explain how the uncoupler, dinitrophenol, can be used to determine whether the inhibitor blocks the ATPase or the electron transport chain.
This was all the information that was given.
Answer:
DNP produces the loss of the proton gradient (i.e., the energy of the proton gradient is dissipated in the form of heat instead to produce ATP)
Explanation:
2,4-Dinitrophenol (DNP) acts to shuttle H+ ions across cellular membranes, bypassing the ATP synthase used by mitochondria to generate ATP during cellular respiration. Since DNP is able to bypass ATP synthase, this compound uncouples the phosphorylation of ADP by the ATP synthase from the process of oxidation (i.e., transport of electrons). For example, in muscle cells, DNP may be used to shuttle calcium ions (Ca +) from mitochondrial stores, and free intracellular Ca+ ions are evidenced to produce muscle contraction.
what element from the periodic table has the highest monetary value per unit
Answer:
francium
Explanation:
The most expensive natural element is francium, but it decays so quickly it can't be collected to be sold.
Help me answer this please ASAP
Atmospheric carbon would
increase / decrease
1. Less solar energy
available on a cloudy
day.
Based on the data, taken at three different time points, which of the following statements best describes what is observed in the image?
A) The Golgi apparatus is dynamic. The vesicles moved exclusively from the cis face to the trans face.
B) The cisternae of the Golgi apparatus did not change in structure between the cis face and the trans face.
C) The secretory proteins are packaged and tagged for transport as they moved from the trans face to the cis face.
D) The Golgi apparatus can recycle vesicles. Some vesicles moved from the trans face to the cis face for recycling.
Answer:
I think it's D. It makes the most sense.
Explanation:
I am taking the test and found some answers.
Have a great day! ;)
Why is freshwater essential to human life?
Answer:
Freshwater is vital for life, supporting ecosystems and human civilizations. We use freshwater in many aspects of daily life including food production, power generation, manufacturing, and sanitation.
GIVE 15 POINTS
Identify the image that doesn’t depict a reproductive strategy.
Answer:
The one which have leaves in it (3rd picture) doesn’t depict a reproductive strategy.
Answer: The three picture
Explanation: I literally just got done with the test and got it right.
What hemisphere is Austin in?
Answer: northern hemisphere
Explanation:
Austin is located at latitude 30.26715 and longitude -97.74306. It is part of America and the northern hemisphere.
arrange the increasing levels of organizations
a) organelle, cell, biomolecule
b) biomolecule, cell, organelle
c) cell, organelle, biomolecule
d) biomolecule, organelle, cell
Answer:
A
Explanation:
a) organelle, cell, biomolecule
Answer:
i think its D
Explanation:
Biolomecules, organelle, cell.
Looking at the following organisms and their diets, place them into a food chain. Make sure you have arrows that show the correct flow of energy.
Aardvark: omnivore diet
Ant: herbivore diet
Grass: autotroph
Hyena: carnivore diet
Answer:
Grass > Ant > Aardvark > Hyena
Explanation:
The grass is autotrophic, which means it can produce its own food It does so using water, carbon dioxide, and light energy from the sun. The organisms in this food chain rely on other organisms for food.
The ant is a herbivore that consumes the grass for energy. The aardvark consumes both plants and animals (omnivore), so it can consume the ants. The hyena is a carnivore, meaning it only eats animals, such as the aardvark.
What do all living things have in common?
A. All living things make the same proteins.
B. All living things have a nucleus to house DNA in their cells.
C. All living things have the same 5 nitrogen bases.
D. All living things need oxygen to breathe.
Answer:
i thing it's b or c
Explanation: the earliest bacteria didn't need oxygen at first.and not all living things create the same proteins. it matters on what kingdom and species it is from.
Whats an explanation for the cycling of matter and flow of energy in
anaerobic conditions>
Answer:
Energy drives the cycling of matter within and between systems in aerobic and anaerobic conditions.
Explanation:
The following graph shows the rates of decay for four parent isotopes. Based on the graph, which parent isotope most likely has a half-life of 13 billion years?
A
B
C
D
Answer:
option c would be the right answer just analyzed the graph
What is the Connective tissue?
What is the Epithelial tissue?
What is the Muscle tissue?
What is the Nervous tissue?
Answer:
connective: Tissue that supports, protects, and gives structure to other tissues and organs in the body
epithelial: are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
muscle: Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts. The tissue is highly cellular and is well supplied with blood vessels.
nervous: Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities.
Explanation:
Answer
Connective tissues gives support, protects and gives structure to other tissues and organs in the body.... example bone, cartilage, blood etc.
Epithelial tissues are spread throughout the body. Their functions include secretion (sweat, mucus), absorption (nutrients) and protection (tissues that lie beneath from radiation) in the body.
Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of the body parts.
Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities.
the organelles that most directly provide this energy are known as a
Answer:
The mitochondrion is an organelle that makes energy available to the cells. It is like the power plant of the cell.
Explanation:
hope this helps!!!
What is the purpose of transciption?
A RNA -----> Protein
B RNA ---> DNA
C DNA ------> Protein
D DNA ----> RNA
Answer:
DNA into RNA
Explanation: