Who is to blame climate change?
Scientists have measured global temperatures for over a hundred years and see that the Earth is getting hotter. Ice core data suggests the Earth should actually be cooling if it were following its natural cycles. The trend can be best visualized by comparing each year’s average temperature with the long- term average. Figure 1 shows observations of the world’s annual average temperature made by the National Oceanic and Atmospheric Administration (NOAA). In recent decades, the years have always been hotter.
Over geologic time, the Earth’s average temperature has changed as a result of the sun’s output, the tilt and position of the Earth in its orbit, and the concentration of greenhouse gases. Scientists have developed a good understanding of the natural variations in these factors by examining different data sources in order to estimate ancient temperatures. Observations tell us that these natural factors have not been changing over the last hundred years or so in a way that would explain the observed temperature increases.
In contrast, greenhouse gases have been changing in a way that can explain the observed temperature increases. Figure 2 shows the change in atmospheric CO2 concentration over the last thousand years. At the Scripps Institute of Oceanography in Hawaii researchers have been sampling pristine mountaintop air every month since 1958. Their observations show that both the concentration and isotopic composition of CO2 is changing, and is consistent with manmade sources, including the carbon emissions from burning fossil fuels. The industrial revolution marked a drastic increase in CO2 concentrations in the atmosphere when humans began using fossil fuels on a large scale.
Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect"1 — warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. CO2 along with other gases are known as greenhouse gases. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric CO2. In its Fifth Assessment Report, the Intergovernmental Panel on Climate Change, a group of 1,300 independent scientific experts from countries all over the world under the auspices of the United Nations, concluded there's a more than 95 percent probability that human activities over the past 50 years have warmed our planet.
Give evidence and reasoning!!

Answers

Answer 1

Answer:

People

Explanation:

The energy we use and waste


Related Questions

What is the purpose of the other tube of water?

Answers

Explanation:

cant see photo

Answer:

delude the other thing

there is no picture so i have no idea what your asking. ill edit this answer to be more specific when you explain

Explanation:

Brainliest - Answer Quickly
What is the source of all energy in an lecosystem?

Options:
Cellular Respiration
Photosynthesis
Recycling of Matter
Solar Energy

Answers

Answer:

solar energy

please mark me brainliest..

have a good day

Answer:

SOLAR ENERGY

Explanation:

PLEASE MARK ME AS BRAINLIEST

Which statements about freshwater sources are true? Check all that apply. B Only about 3 percent of Earth's water is fresh water Most of the fresh water on Earth is groundwater. About 75 percent of the fresh water on Earth is frozen in ice sheets. The largest source of usable fresh water is groundwater. More fresh water is in the atmosphere than in rivers and lakes. ​

Answers

Answer:

all but 3 percent

Explanation:

because i looked it up

Answer:

groundwater is correct

True or false scientific name tells you to family in which the organism belong

Answers

Answer:

False

Explanation:

A scientific name for a species is a unique name, which means that no species can have the same scientific name. The scientific name of a species tells you the genus and the species name of an organism. The genus comes first in the name and is the more inclusive group of organisms.

What is osmoregulation?

Answers

Answer:

adalah penghijauwan kota

Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated. Osmotic pressure is a measure of the tendency of water to move into one solution from another by osmosis.[1] The higher the osmotic pressure of a solution, the more water tends to move into it. Pressure must be exerted on the hypertonic side of a selectively permeable membrane to prevent diffusion of water by osmosis from the side containing pure water.

Organisms in aquatic and terrestrial environments must maintain the right concentration of solutes and amount of water in their body fluids; this involves excretion (getting rid of metabolic nitrogen wastes and other substances such as hormones that would be toxic if allowed to accumulate in the blood) through organs such as the skin and the kidneys.

Can someone explain the Punnett square ?

Answers

Answer:

so in the punnet square, you hvae the 4 squares inside the big on. on top of the square, you have 2 letters, representing the dominant and the repressed genes. On one side, typically  the left, you have another two letters, again genes. to get the gene types to fill in your squares, you take the first letter of the top set and the first letter of the side set. for this example, we are going to use Bb(top) and BB(side). you would take the B from the top, and you would pu it with the B from the side. in the top left square, you should have BB. next, you go and take that same top B and do it with the second letter of the side, B again. this again gives you BB.  next, you take the second letter of the top, b, and you join it with B. in the top right square, you would write or type in Bb. Even though the b was on top, it is after the B because in this cause, it is not the dominant gene. when you do the second top and side letters together, you again get Bb.

Explanation:

the main points.

in this example, i used B to be the dominant gene and b to be the repressed/ submissive gene. you always put the dominant gene letter before the repressedmake sure you fill the squares in properly. in this one, you should have 3 BB and 1 Bb. this shows that the gene set BB is going to showwhen you fill in the squares, the first top letter and the first side letter fill in the top left square.the first top letter and the second side letter go left bottom.second top letter and first side letter go in right top.second top and second side go in right bottom.always place the dominant gene first in the punnet square.

add me and message me if you need more help. we can also zoom to figure it out.

The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.

Help me I’ll give 50 points helppp!

Answers

Answer:

2 Refraction, Transition/bouncing?

7. Opaque, absorbs

Explanation:

StraightLustre,ShineMirrorTransparency, PropertyNot deep,less fastersee,redoblique ,blockswood,more metals,Board,pen

MULTIPLE CHOICE QUESTION
Why do scientists think that cuttlefish
have the biggest brain to body ratio of all
invertebrates (animals without a spine)?

Answers

Answer:

Due to its high intelligence.

Explanation:

Scientists think that cuttlefish  have the biggest brain to body ratio of all  invertebrates that allows it to sense sight, smell, and sound that comes to it in the form of pressure waves. Due to this big brain, cuttlefish are very intelligent so due to its intelligence the scientists thinks that cuttlefish has the biggest brain as compared to other big vertebrates such as octopus.

Predict the effect on shrubs growing in one area if they are treated with a compound that blocks electron flow through the electron transport chains of chloroplasts. Provide reasoning to justify your prediction.

Answers

Answer:

The shelves or die and will not be able to produce sugars. Blocking electron flow prevents the formation of the proton gradient required to produce the ATP used for sugar production.

The shrubs will die because they cannot photosynthesize. Without it, plants begin to wilt and finally die because photosynthesis requires light.

In the absence of photosynthesis, do plants die?

In essence, photosynthesis is the mechanism that powers the survival and growth of plants and even algae. The majority of plants would perish quickly if photosynthesis suddenly stopped.

Night-time is not a time when plants engage in photosynthesis. Only when exposed to the right wavelengths of artificial light during the night can plants perform photosynthesis. Light energy is absorbed with the aid of the pigment chlorophyll. Light energy is converted into chemical energy through the process of photosynthesis.

To learn more about photosynthesis refer to:

https://brainly.com/question/19160081

#SPJ2

What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same


need help please

Answers

Answer:

a number that stands alone with no variable

Hope this helps!

Lloyds lab partner is looking down into a test tube while he hears the contents by using a flame. Which action should Lloyd recommend to his partner if heating must continue?

Answers

Answer:

To stop looking throught the test tube. lol

Explanation:

what is reduced soil?

Answers

Answer:

A chain of reactions is initiated upon soil flooding leading to reduced (low) soil redox potential (Eh, mV) conditions. These reactions include physical, chemical and biological processes that have significant implications for wetland plants.


Physical processes include restriction of atmospheric gas diffusion in the soil leading to depletion of soil oxygen and accumulation of carbon dioxide [4,5]. ... This process leads to oxygen depletion and reduction in soil oxidation reduction potential (Eh) followed by a chain of soil chemical changes.

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?

Answers

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:

Does anyone know the answer?

Answers

Answer:

Fungi

Explanation:

A group of students wants to investigate the effect of the concentration of salt in salt solution (2, 5, 10, 15%) on the growth of the mint plant after three weeks of planting. Write a procedure helping the students to carry out their investigation.

Answers

Answer:cccccccccccccccccccccccc

Explanationccccc

in what cells, do the cell cycle occur?

Answers

Answer:

In eukaryotic cells, or cells with a nucleus may this help u buddy

eukaryotes cells or cells with a nucleus

please help i will give brainlist

Answers

Answer:

I think it's c hope I hope I helped if not I'm sorry:(

Option B is i hope
I think it is

What is a recessive allele?

Answers

Answer:

A type of allele that when present on its own will not affect the individual. Two copies of the allele need to be present for the phenotype to be expressed.

Explanation:

Answer:

A recessive allele is a variety of genetic code that does not create a phenotype if a dominant allele is present. An allele is a specific variation of a gene, or specific segment of DNA. Different alleles produce slightly different proteins, which function in different ways.

Explanation:

Hope this helps

have a great day!

Which of the following provides the best summary of the process of natural
selection?
A. Populations become better adapted to their environment.
B. Individuals pass on their best traits to their offspring.
C. Individuals always change in response to their environment.
D. Population sizes increase with every generation.
SUBMI

Answers

Answer:

c

Explanation:

Which blood component fights and destroys disease-causing bacteria and
viruses?

Answers

Answer:

white cells

Explanation:

the answer is white blood cells

if an object is 3 AU from the sun, it is

Answers

Answer:

That probably refers to asteroids.

Explanation:

There is a large belt of asteroids between the orbits of Mars and Jupiter.

What absorbs water in the digestive system

Answers

Your answer is Small Intestine.

Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.

Answer: Small intestine

Either you put small intestine in the wrong place, or you're able to put the same one for multiple questions

Can someone help me please and thank you!!

Answers

Answer:

It should be the one that's selected in the image.

Explanation:

Triglycerides store unused calories and provide your body with energy. Cholesterol is used to build cells and certain hormones.

Question 1 (4 points)
(04.01 LC)

Rocks created from the cooling of magma or lava are called (4 points)

Answers

Answer:

igneous rocks

Explanation:

brainliest plz?

Answer:

the answer is igneous rocks

Explanation:

I did the exact same test because I am also from the same school (FLVS)

Which of these is thickes layer of earth

Answers

Answer: core

Explanation:

The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.

Mutations that are passed to offspring must
OCcur
in

Answers

Answer: Gametes

Explanation:

Arrange the levels of ecological organizations from smallest to largest

population
organism
community
ecosystem

Answers

Organism, Community, population, ecosystem

Light-dependent and light-independent reactions occur at the same time. True or False

Answers

true  because they are driven by the ATP made by the light-dependent reactions. Both systems shut down in the dark. The light-independent reactions can last a little longer if there is ATP remaining in the chloroplast.

What is a similarity and a difference between the stars Rigel & Betelgeuse?​

Answers

Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super-giant star compared to the sun.

hope this helps ^^

Answer:

Stars as large as Betelgeuse are very unusual. In contrast, Rigel, the bright, bluish-white star at the southwest corner of Orion, is smaller and much hotter than Betelgeuse. Although Rigel is smaller than Betelgeuse, it is still a super giant star compared to the sun

i hope this helps~

Can someone please helpppppo I’ll mark the brainliest

Answers

Answer:

C [the third one btw]

Explanation:

He believed that evolution gradually [slowly] happened over time.

Hope this helps :D Have a great day

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A square has a perimeter of 4m^2. What is the length of each side? Schools must ensure certain rights, accommodationsand protective measures for sexual assault victimsonly if they choose to report to law enforcement.TrueFalse The graph shows Jill's walk home from school.DistanceTimeWhich statement best describes the graph?A) Jill walked home very slowly.B) Jill started walking, sat down for a rest and then continuedwalkingC) Jill started walking, took a rest, walked some more and restedagain.D) Jill walked and then ran walked more and then ran more. PLEASE HELP ASAP!!!!!!!!!!!!Which shared psychological traits can advertisers use to influence buying decisions? (Select all correct answers.)1. the need for belonging2. empathy toward others3. natural curiosity4. the desire to be remembered What fraction is equivalent to -7 over 81)8 over -72)7 over -83)-7 over -84)7 over 8 1. You spend $18 on breakfast and tax is 7%. Wha is your total? I WILL GIVE BRAINLIEST!!!! Plus 10 points!!Which two structures are connected by the ear bones? eardrum and stirrupstirrup and auditory nerveauditory nerve and cochleacochlea and eardrum Ella lo __________. Question 7 options: hice hizo someone help PLEASEEEE what is thesis statement of Hospital are lack of equipment? PLEASE HELP ME ANSWER THIS QUESTIONFirst Read: PerseusHow is Perseus able to behead the snake-haired Medusa without turning to terrored stone? Cite textual evidence to support your answer. PERIODIC TABLEWhat element is located at the period 3, group 13? Why does Rachel say, only it's too late after describing her birthday party? 56 is 0.4% of what number? How many years passed from the time Texas declared independence and when itgained statehood? What is produced when a strong base reacts with the bicarbonate buffer system in the human body?a.) carbon dioxideb.) bicarbonate ionsc.) carbonic based.) water write a short math peom if you attend a peaceful protest you are exercising which first amendment right?B. Freedom of speech C: freedom of the press D. freedom of assembly A good story captures and holds our interest using suspense and action. What are four of the functions of action and suspense (two of each) Which Latin American country gets the least impact on its economy from investing in education? (20 points)A. MexicoB. BrazilC. Cuba