observe the long-term effects OT erosion on
1.
Click Play ( )). Wait for about 20,000 simulated years, then click Pause ( 1 ). If you want,
you can drag the landscape to rotate the view. How much does the landscape change?
Answers
Several erosive agents affect the soil structure and composition. Selecting sandstone, 100cm/yr precipitation, 20ºC, and 50% vegetation cover, there is 45% of eroded rock. The general landscape appearance changes little.
ErosionErosion is the process of fertile soil loss.
It is due to several external agents that damage the ground and drag the exposed material from the superficial layer of the earth.
Erosive agents
Some of the erosive agents are water, wind, ice, gravity, or animal trampling.
Phases
Three main phases compose the erosion process
a) particles landslide
b) transport of superficial free particles
c) deposit/sedimentation.
Soil erosion leads to its degradation.
Since its regeneration is extremely slow, erosion produces several negative events that lead to soil loss as a non-renewable natural resource.
Vegetation cover
All the erosive agents act together modifying the soil composition, shape, and structure. The loss of plant cover increases, even more, the erosive effects.
Soil vegetation cover reduces erosion because the aerial part of the plant protects the surface, while roots protect the ground structure and retain water.
The less vegetation cover there is, the more exposed the soil is, and the more severe effects the erosive agents cause.
In the exposed example, we have many variables to control and analyze their effect on soil erosion. Before playing the simulation, I chose the followings
Stones ⇒ sandstone Precipitation ⇒ 100 cm/yrTemperature ⇒20 ºCVegetation cover ⇒ 50%Under these conditions, after 20,000 years there was 0.42 km³ of eroded rock.
The general aspect of the landscape changed very little, suggesting that erosion occurs slowly.
Probably, if we change the values of the variables, we will observe a sharper change. For instance, if we take the vegetable cover to less than 20% and increase the levels of precipitation and temperature, we will observe a faster erosion process and a wider affected area.
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Related Questions
The theory of plate tectonics was, at first, rejected by most scientists. Now most geologists accept that tectonic plates exist and that these tectonic plates can and do move. What is responsible for the change in how scientists think about plate tectonics?
Answers
Answer:
The validation of seafloor spreading in the 1950s and 60s
Explanation:
The theory of seafloor spreading was supported by numerous evidence including thermal probes that showed that heat flow over the mid-ocean ridges measured up to four times those measured in general bottom sediments, which are taken as due to the presence of molten Earth material close to the ridge crest
The ridge crest also show signs unusually seismic wave velocities that are considered to be due to microfracturing and thermal expansion from upwelling magma
Fill in the coefficients that will balance the following reaction:
PbI4 +
CrCl3 →
PbCl4 +
CrI3
Answers
the equation balanced is
3 PbI4 + 4 CrCl3 → 3 PbCl4 + 4 CrI3
Answer:
3,4,3,4
Thank me later!
Explanation:
Question 4
Which best describes a chemical reaction that follows the law of conservation of matter?
А
The reactants have the same mass as the products.
B
The reactants have the same density as the products.
С
The products conserve all physical properties of the reactants.
D
The products conserve all chemical properties of the reactants.
Answers
True or false. (Pls help)
Answers
Answer:
1.) False?
2.) true. sorry english not my first language
Why are ions usually formed during the interaction of metal with nonmetal and not between two metals?
Answers
Explanation:
Ions are always formed when metals and non-metals interact because metals are electropositive. They willing release electrons to non-metals that are electronegative.
This activity results in charge separation. The transfer of electrons from one specie to another is what results in an ionic bond and the precedence of charged particles.
Between non-metals, the electrons are jointly shared. Therefore, there is no charge separation.
7
Select the correct answer.
Which quantity is a graduated cylinder designed for measuring?
O A. length
ОВ.
mass
O C. temperature
D.
time
O E. volume
Answers
how can you find the Frequency if you only have the wavelength? can you solve this example what is the Frequency of the wavelength 4km? can you please show your steps thanks.
Answers
Answer:
75000 Hz
Explanation:
f = V / λ (f= frequency, v=velocity of wave, lambda= wavelength)
alternatively, f = c / λ (f= frequency, c= speed of light- 3.00x10^8 m/s, lambda= wavelength)
f= [3.00x10^8 m/s]/[4000 m]
=75000 Hz
A teacher showed this animal to students on a field trip which tool will allow the students to best see the animal up close
Answers
Answer:
Magnify glass
Which procedure is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele?
selective breeding
cloning
artificial selection
gene therapy
Answers
Answer:
Hi, the answer is C. Artificial Selection
I know this becasue I just finished my test
Explanation:
Which of the following is an example of Newton’s 2nd Law? A. A bowling ball requires more force to roll than a tennis ball B. Sitting in a chair C. A rocket blasting off D. All of the above
Answers
Answer:
The answer is A.
Explanation:
help !!!!!!! cell membrane plants information due soon
Answers
How you find a unknown element (just with the atomic emission spectrum)
Answers
can someone help me with this
Answers
Which molecule has the strongest forces of attraction between molecules?
Answers
Dipole-dipole interactions are the strongest intermolecular pressure of attraction.
Answer: Dipole-dipole interactions are the strongest intermolecular force of attraction.
Explanation:
is this correct? and can you tell me yes or no for each one thanks
Answers
Answer: Yes it's correct.
Explanation: i hoped that helped!!
Answer:
yes this is correctly done
What kind of molecule can experience hydrogen bonding?
A. A nonpolar molecule containing a hydrogen atom
B. A molecule with hydrogen bonded to any nonmetal
C. A molecule with hydrogen bonded to O, N, or F
D. Any polar molecule containing a hydrogen atom
Answers
Answer:
Answer is C
Explanation:
C - A molecule with hydrogen bonded to O, N, or F
A molecule with hydrogen bonded to O, N, or F can experience hydrogen bonding. Therefore, the correct option is option C.
A hydrogen atom is attracted to another electronegative atom in a neighbouring molecule when it is connected to a strongly electronegative atom (O, N, or F). This attraction is more powerful than the usual dipole-dipole interactions between polar molecules.
The enormous electronegativity differential between hydrogen and the highly electronegative atom causes hydrogen bonding. The electronegative atom attracts the shared electrons in the covalent link, causing the hydrogen atom to gain a partial positive charge.
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What does it mean when a compound is 'soluble in water?
A. It does not dissolve in water.
OB. It dissolves in water.
O C. It forms a precipitate in water.
O D. It has water molecules attached to it.
Answers
B. It dissolves in water.
<33
Answer:
B it dissolves in water
Explanation:
Their molecules bond to water molecules
Calculate the gravitational force between two objects when they are 0.75m apart each object has a mass of 5.00kg
Answers
Answer:
0.000000000666863
Explanation:
F = GMm/R²
What were some dangers associated with early ballon flights?
Answers
Explanation:
The dangers of ballooning were apparent to aeronauts and the general public. From the early 1800s, attempts to fly over water too often ended in disaster or a narrow escape. Some of the best known aeronauts on both sides of the Atlantic set off across a large body of water never to be seen again.
When is evaporation used
Answers
before the water goes back in the enviorment
What types of elements- metals,
nonmetals, or metalloids require
the most energy to remove an
electron?
Why do these elements have a higher ionization energy?
Answers
Answer:
Noble gases
Explanation:
The noble gases are non-metals that requires the highest amount of energy to remove an electron from their shells.
The reason for this difficult is that their electronic configuration confers a stable configuration them.
The ionization energy is the energy required to remove the most loosely held electrons in an atom. Due to the special stability of noble gases, it is very difficult to remove electrons from an atom of noble gases.Practitioners of the branch of alternative medicine known as homeopathy claim that very dilute solutions of substances can have an effect. Is the claim plausible? To explore this question, suppose that you prepare a solution of a supposedly active substance, X, with a molarity of 0.10 molL1 . Then you dilute 10. mL of that solution by doubling the volume, doubling it again, and so on, for 90 doublings in all. How many molecules of X will be present in 10. mL of the fi nal solution? Comment on the possible health benefi ts of the solution.
Answers
Answer:
a. 4.865 × 10⁻⁷ molecules. b. The possible health benefits of the drug might be minimal or non-existent.
Explanation:
a. Since we have 0.10 mol/L and 10 mL of solution, the number of moles in 10 mL of solution is n = CV where C = concentration and V = Volume. C = 0.10 mol/L and V = 10 mL = 0.01 L.
So n = CV = 0.10 mol/L × 0.01 L = 0.001 mol.
Since the initial volume of the solution is 10 mL and doubled, it is 2 × 10 mL = 20 mL. It is doubled again to 2 × 20 mL = 40 mL. It is doubled again to 2 × 40 mL = 80 mL. Our third doubling is thus 80 mL = 2 × 2 × 2 × 10 mL = 2³ × 10 mL. So the volume for our nth doubling is V = 2ⁿ × 10 mL. So four our 90 th doubling, the volume is V = 2⁹⁰ × 10 mL = 2⁹⁰ × 10 mL
Since we have 0.001 mol present, the concentration in this new volume is thus C' = 0.001 mol/2⁹⁰ × 10 mL.
So the number of moles in 10 mL of this solution is thus n = 0.001 mol/(2⁹⁰ × 10 mL) × 10 mL = 0.001/2⁹⁰ mol
To find the number of molecules of X present we use, number of moles, n = number of molecules, N/Avogadro's number of molecules, N'
n = N/N'
N = nN'
= 0.001/2⁹⁰ mol × 6.022 × 10²³ molecules/mol
= 8.078 × 10⁻³¹ × 6.022 × 10²³
= 48.65 × 10⁻⁸
= 4.865 × 10⁻⁷ molecules.
b. Since the number of molecules of X present in 10 mL solution of the final diluted solution is 4.865 × 10⁻⁷ molecules, this shows that the number of molecules of X is very little so, the possible health benefits of the drug might be minimal or non-existent.
Hi can someone help me answer this!
Answers
What type of reaction would NI3+ ->lead to?
Answers
Answer:
Reduction potential (Eo) is defined as a tendency of a chemical species to be reduced by gaining an electron and is defined with electrochemical reference of hydrogen, which is globally given the reduction potential of zero [24].
Explanation:
why chemical reactions are important to society?
Answers
Got it from google lol
which of the metal is suitable to store lead nitrate solution
Answers
Explanation:
The nitrate anion is a univalent (-1 charge) polyatomic ion composed of a single nitrogen atom ionically bound to three oxygen atoms (Symbol: NO3) for a total formula weight of 62.05. Lead Nitrate is generally immediately available in most volumes.
Which option is an Ionic Compound
A.LiCl
B.CO
C.No2
D.So3
Answers
Answer:
LiCI
Explanation:
CO and No2 are both covalent compounds and it was a 50 50 and I guessed the right answer.
The one that is an ionic compound is LiCl. The correct option is A.
What are ionic compounds?
Ionic compounds are those compounds that have one negative and one positive charge molecule. When this negative and positive charge joins together, the compound becomes neutral. Electrostatic force joins these elements.
LiCl is a salt that is formed by the joining of lithium with chloride. Lithium is positively charged and chlorine is negatively charged. One identity of this compound is that it is a neutral salt, so it can be identified as an ionic compound. When they disjoint, they form a crystal-like structure.
An example of an ionic compound is sodium chloride, in which sodium is positive and chloride is negative.
Therefore, the correct option is A. LiCl.
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how many moles of sulphur are in 53.7 grams of sulphur
Answers
Answer:
1.67 mol S
General Formulas and Concepts:
Chemistry - Atomic Structure
Reading a Periodic TableUsing Dimensional AnalysisExplanation:
Step 1: Define
53.7 g S
Step 2: Define Conversions
Molar Mass of S - 32.07 g/mol
Step 3: Convert
[tex]53.7 \ g \ S(\frac{1 \ mol \ S}{32.07 \ g \ S} )[/tex] = 1.67466 mol S
Step 4: Check
We are given 3 sig figs. Follow sig fig rules and round.
1.67466 mol S ≈ 1.67 mol S
Sucrose is an organic compound made by plants for quick energy. What type of organic compound is sucrose?
1-protein
2-carbohydrate
3-lipid
4-nucleic acid
Answers
Answer:
2-carbohydrate
Explanation:
Sucrose belongs to the carbohydrate family. It is a disaccharide which is derived from the condensation of glucose and fructose.
In the body, they are sources of energy for living processes. Upon hydrolysis such disaccharide produces tow monosaccharide units. Food substances that are energy rich will contain some of these organic molecules.Sucrose is a specific type of organic compound classified as a carbohydrate and the correct option is option 2.
Carbohydrates are essential biomolecules made up of carbon, hydrogen, and oxygen atoms. Sucrose, also known as table sugar, is a disaccharide formed by the chemical bonding of one glucose molecule and one fructose molecule.
Plants produce sucrose through photosynthesis and use it as a readily available source of energy. When consumed by animals, including humans, sucrose is broken down into its constituent monosaccharides to provide fuel for various cellular processes.
Thus, the ideal selection is option 2.
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What is the overall charge of the compound, NaF?
+2
-2
-1
0
Answers
Answer: -1
Explanation: It is neutral because the Na and F atoms are transferring their valence electrons in order to become stable. This results in an overall stable atom. If we were to identify the individual charges of verbalized atoms, Na would have a positive charge, and F a negative charge - both of 1.
It's not -1.
the answer is (0), hope this helped