2. Explain why carbon dioxide in the atmosphere is increasing.
3. Describe one explanation for why Earth’s climate is becoming warmer.
4. Analyze the factors that have limited the effectiveness of the Kyoto Protocol.
Answers
Answer: Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.
(1)Extra greenhouse gases in our atmosphere are the main reason that Earth is getting warmer.
(2)Greenhouse gases, such as carbon dioxide (CO2) and methane, trap the Sun's heat in Earth's atmosphere.
(3)It says that the 1997 Kyoto Protocol was an unmitigated success, with every single one of the 36 countries that signed up reducing their mean annual greenhouse gas emissions from 2008-2012 by an average of 5% relative to the levels seen in 1990.Jun 15, 2016 Many argue that Kyoto's failure is due to deficiencies in the structure of the agreement, such as the exemption of developing countries from reductions requirements, or the lack of an effective emissions trading scheme.by 2012
Explanation:
Related Questions
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
What happens to air pressure and amount of oxygen as the altitude increases in Earth's atmosphere? 1. Air pressure decreases, while the amount of oxygen increases. 2. Both air pressure and the amount of oxygen increase. 3. Air pressure increases, while the oxygen decreases. 4. Both air and oxygen decrease.
Answers
Answer:
As altitude increases in Earth's atmosphere, both air pressure and the amount of oxygen decrease.
At sea level, the air pressure is about 1013.25 millibars (mb) and the concentration of oxygen is about 21%. As you go higher in the atmosphere, the air becomes thinner and less dense, so the air pressure decreases. At the same time, the concentration of oxygen also decreases because there is less air overall to contain oxygen molecules.
This is why it is harder to breathe at high altitudes, such as on a mountain. The air is less dense, so there are fewer oxygen molecules per breath and the body has to work harder to get enough oxygen.
Answer:4: Both Air and Oxygen decrease.
Explanation:This is in accordance with Henry's law. As pressure decreases solubility of gases decreases. Air pressure decreases as we altitude increases and the decrease in oxygen level is the consequence ,
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answers
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
Answer: Nicole can take a small amount of sample from both of the glasses, she can place the samples in two separate containers and leave them out in the sun, so that the water gets evaporated. One of the two containers will contain a residue of sugar. The one containing the sugar residue, is the sugar-water solution.
Which is a physical change?
using electricity to break down water into hydrogen and oxygen
formation of rust on a metal fence
turning on a gas burner on a stove
the evaporation of water into water vapor
Answers
Answer:
Hello how are you doing my name is naitik your answer is c because it can be reversed I hope it helps
Formation of rust on a metal fence
Which of these phrases would go in the overlap? Select two options.
Answers
If a student pushes a book across a table with a force of 6 N and the force of friction is 4 N. What is the net Force acting on the book?
Answers
Answer:
The net force is 2 N in the direction the book is being pushed.
Explanation:
When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.
Answers
Answer:
Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.
Table B: Calculation of Kinetic Energy (KE)
Table B: Calculation of Kinetic Energy (KE)
Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500
To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.
For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2
Perform similar calculations for the other velocities and record the results in Table B.
Answer:
Explanation:mass of the bottle in each case is M = 0.250 kg
now as per given speeds we can use the formula of kinetic energy to find it
1) when speed is 2 m/s
kinetic energy is given as
2) when speed is 3 m/s
kinetic energy is given as
3) when speed is 4 m/s
kinetic energy is given as
4) when speed is 5 m/s
kinetic energy is given as
5) when speed is 6 m/s
kinetic energy is given as
A grade 8 students burnt white phosphorus in the air contained in a bell jar. what will be the volume of the renaming air in the bell jar.
A. 20%of the air
B. 50% of the air
C. 25% of the air
D. 79%of the air
Answers
need help badly please !
Answers
Answer:ok
Explanation:
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
whats the answers for brainpop skeletal system
Answers
Answer:
whats the question??? I am familiar with brainpop but if u tell me the question ill give u the asnwer
Explanation:
Write the symbol for the ion with 68 electrons, 72 protons, and 106 neutrons.
Answers
Answer:
I think it should be Hafnium which is Hf.
Jane is a graphic designer who is hired by several different companies to create logos and marketing designs. As part of her final project, she makes sure to deliver images in several resolutions. Why is the resolution of an image important? Why would several different versions of the same image be needed? What would happen if a low-resolution image was used on a large poster? Explain your reasoning.
Answers
Answer: Which substances are released during cellular respiration?
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
Explanation:
Answer:Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
From your list, select one biotic factor and one abiotic factor that you had a negative impact on. Propose a change you could make to prevent the negative impact in the future.
Be sure to include:
one biotic factor (1 point)
one abiotic factor (1 point)
Propose a change you could make to prevent the negative impact in the future. (1 point)
Your answer should include a complete sentence for each factor and explanation.
Be sure to check your grammar and spelling.
Sentence Starter:
One biotic factor I had a negative impact on was...
One abiotic factor I had a negative impact on was...
One way I could change my negative impacts in the future is by...
Answers
Answer:
what list?
Explanation:
=:)
✿
All substances taking part in a certain interaction are shown below:
Carbonate = Calcium Oxide + Carbon Dioxide
Calcium Oxide equals: 112 G
Carbon Dioxide equals: 88 G
Which of the following is the correct estimate of the amount of calcium carbonate used in the interaction?
A. Sum of 112 g and 88 g
B. Difference between 112 g and 88 g
C. Twice the sum of 112 g and 88 g
D. Twice the difference between 112 g and 88 g
✿
any help is much appreciated <3
will reward brainliest to the correct answer (•◡•) !
Answers
Answer:The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, the correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.
Explanation: I hope this helped!
What causes water pollution?
Answers
Answer:
Good answer below, just adding on
Explanation:
Runoff of chemical products, animal waste, and especially human waste products such as different types of trash like scrap metals and plastic greatly increase water pollution. Additionally, oil leaks and spills can also lead to severe water pollution. As a general statement I'd say that human activities that are not monitored and are either directly dumped into water ways or are caught in run off cause water pollution.
Name the particle that has each type of charge?
Positive (+) _________________________________________________
Negative (-) _________________________________________________
No Charge (0) _________________________________________________
Answers
Answer:
positive: proton
negative: electrons
no charge/nuetral: nuetron
Explanation:
no charge could be also described as nuetral.
negative - electrons
no charge - neutrons
all minerals on the mohs hardness scale are hard enough to scratch a piece of glass is it true or false
PLEASE I NEED HELP
science
Answers
I NEED IT ASAP plssss thank you ( until 12am today November 5, 2021 ) last picture is the storyyy
Answers
Answer:
1. The stronger the intermolecular forces are, the more energy is required, so the higher the melting point is. Many intermolecular forces depend on how strongly atoms in the molecule attract electrons — or their electronegativity. ... Hydrogen bonds are among the strongest intermolecular forces.
A model of an atom shows eight electrons in rings that represent different energy levels. How many electrons are in each energy level?
A. two in the first energy level, six in the second energy leve
B. eight in the first energy level, zero in the second energy level
C. zero in the first energy level, eight in the second energy level
D. four in the first energy level, four in the second energy level
Which statement about an atom is correct?(1 point)
A. The neutron has no charge and is found outside of the nucleus.
B. The electron has a negative charge and is found outside of the nucleus.
C. The proton has no charge and is found in the nucleus.
D. The neutron has a negative charge and is found in the nucleus A student wants to draw a model of an atom.
Which statement describes how to find the number of neutrons to include in the model?(1 point)
A. Subtract the atomic number from the mass number.
B. Add the number of electrons to the number of protons.
C. Subtract the number of electrons from the number of protons.
D. Add the atomic number and the mass number.
What is the atomic number of an atom?(1 point)
A. the number of particles outside the nucleus
B. the number of particles in the nucleus
C. the number of neutrons
D. the number of protons
PLEEEEEEEEEEEEEEASSSSSEEEEEEE HELLLLP ASAPPPPPPPPPPPP...........................
Answers
Energy levels are arranged in increasing order of magnitude in accordance with the Bohr model.
The correct sequence of answers is as follows;
1) two in the first energy level, six in the second energy level
2) The electron has a negative charge and is found outside of the nucleus.
3) Subtract the atomic number from the mass number.
4) the number of protons
An atom contains a nucleus and electrons arranged in energy levels outside the nucleus. Each energy level is filled with electrons.
The first energy level contains only two electrons, subsequent energy levels contain a maximum of eight electrons.
The proton is positively charged, the neutron has no charge and the electron is negatively charged. The proton and neutron are found inside the nucleus while the electrons are negatively charged and found outside the nucleus.
The mass number is the sum of the number of protons and neutrons. hence the number of neutrons is the difference between the mass number and the number of protons.
The number of protons in an atom is its atomic number.
Learn more: https://brainly.com/question/14156701
What is the main purpose of the concentration gradient and why is it vital to the process of osmosis?
Answers
Answer:
The osmotic gradient is the difference in concentration between two solutions on either side of a semipermeable membrane, and is used to tell the difference in percentages of the concentration of a specific particle dissolved in a solution.
Explanation:
I hope this helps!
Explain how the model you developed shows that when oxygen combines with hydrogen to form water, no atoms are left over from the reaction.
Enter Text
Answers
The making of any compound requires the joining of a different element with the help of various bonds, these bonds are as follows:-
Covalent bondIonic bondSigma bondAccording to the question, the atoms of oxygen and the hydrogen molecules joins together in their vacant space and join together with the help of a covalent bond.
The bond changes the physical state of the element and together they form a liquid which is water.
For more information, refer to the link:-
https://brainly.com/question/3443484
Many systems and technologies have been designed to communicate over long distances. They all send information that has been encoded into a signal. What must a receiver be able to do to understand a signal that is being sent to them?
Answers
On the following periodic table of elements, what do these colors represent?
blue - -Nonmetals
red- -Metals
yellow- -Metalloids
Answers
Answer:
blues are nonmetals (gas)
yellows are metalloids (liquids)
reds are metals (solids)
Explanation:
good luck, hope this helped <3
Imagine that you are a chemist in the early 1900s who works for a lab that synthesizes aspirin from salicylic acid. Write an argument that explains to a reluctant patient the advantages that synthetic medicines may have over natural remedies.
Answers
Answer:
I do experiment with salicylic acid
Explanation:
I I think you have to run and write the equation that you made in salicylic acid because salicylic acid is very harmful to us human have skin that is made up of Cleveland Clinic
The atomic number of an element:
Question 2 options:
Tells you the mass of the atom
Tells you the number of energy levels there are around the atom
Tells you the identity of the atom
Tells you how many valence electrons the atom has
Answers
How can the rate of a reaction be decreased?
Responses
A: having more surface area
B: lowering the amount of reactants
C: adding a catalyst
D: raising the temperature
Answers
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Do question 4 thank u
Answers
Answer:
Mr. crabs conclusion is that after eating the patties, there breath will smell better.
Explanation:
Morse code was invented and first used before the invention of the telephone. Explain how using electronic pulses to send messages in Morse code would have been an advantage over using your voice.
Answers
Answer:
Using electronic pulses to send messages in morse code would be an advantage over using your voice because not everyone could understand morse code. If you wanted to send a message and didn't want someone to overhear you say it you could use morse code to send the message quietly. Seeing that everyone doesn't know morse code you could send almost secret messages using it.
Explanation:
Using electronic pulses to send messages in Morse code was an advantage over using voice because it allowed for long-distance communication without the need for a physical connection, such as a telephone line. The signals could be sent over telegraph wires or even through air, making communication faster and more efficient. Additionally, Morse code could be sent silently, making it ideal for covert communication.