as of may 2020, carbon dioxide levels have reached 417 parts per million. what level should they be at to have the world in a climate similar to that in which civilization first developed?

Answers

Answer 1

Given what we know about global carbon levels in the present and the past, we can confirm that in order to be at the level of early civilizations, the modern-day carbon level should be at 280 parts per million.

Global atmospheric carbon levels are measured in parts per million. What this means is that for every one million units of mass in the atmosphere, 280 of them were carbon. This means that in recent years, the global carbon levels in the atmosphere have doubled.

The primary cause of these increased carbon levels is industrial pollution. Chemicals are released into the atmosphere as a by-product of industrial processess. This began with a noticeable spike during the industrial revolution and has then increased without end.

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Related Questions

Ufbufbioaerubvfbiahffbbeaifhfia help me

Answers

The answer is coral reefs

QUESTION 8
A cell has 14 chromosomes. How many chromosomes will it have after it undergoes cytokinesis in mitosis?
OA) 7
B) 28
OC) 14
D)2
E) none

Answers

Answer:

C) 14

Explanation:

There would be 2 daughter cells, but each would have 14 chromosomes

During exercise, the blood is travelling more quickly around the body. This carries more oxygen to the exercise muscles. Describe other changes in the athlete's body that enable more oxygen to be taken in at the lungs.

Answers

Answer:

your heart rate goes up explaining why the blood is traveling quicker. this causes you to breath faster meaning bring more oxygen to the blood in your lungs faster. your blood pressure also goes up from the increase in heart rate.

Answer:

the breathing rate and volume of each breath increases to bring more oxygen into the body

Explanation:

it removes the carbon dioxide produced. the heart rate increases, to supply the muscles with extra oxygen and remove the carbon dioxide produced.

which fish is born in fresh water but spawns in salt water?

Answers

Answer:

anadromous fish is born in fish water and spwan in salt water

earthquakes occur at weak palces in the crust knows as

Answers

Answer:

Divergent plate Boundaries

Yea, the person above me is 100% correct lol, they are called divergent plate boundaries

Please answer this






Hh

Answers

Answer:

Emm... Answer what exactly

A laboratory cat could be made to twitch its whiskers by direct stimulation of the ________ lobes of the cerebral cortex.

Answers

The answer is Frontal lobes

compare the plants that live in deserts with the plants that live in the tundra biome.

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Answer:

Both desert and tundra plants grow and flower quickly in the short growing season.

Desert plants have special structures that allow them to trap and store water.

Tundra plants grow low to the ground to stay out of the cold and dry wind.

Plants in the desert and tundra both develop and bloom swiftly. Plants in the desert have unique that enable them to capture and store water. To avoid the cold, dry wind, tundra plants grow low to the earth.

What is in the tundra biome?

Tundra is the coldest biome of all of them. The Finnish name for tundra is tunturi, which meaning treeless plain. It is well known for having landscapes that have been formed by frost, very cold temperatures, little precipitation, insufficient nutrients, and short growth seasons. A dead organic substance acts as a source of nutrients.

What are the characteristics of the tundra biome?

Tundra habitats, which are defined by their lack of plants and severe environments with minimal rainfall, are found in the Arctic and on mountain summits. The majority of the year, tundra areas are covered in snow, but the summer brings bursts of wildflowers.

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Human _________ describes the various ways in which technology can be integrated with biological systems to repair or improve human functions.

Answers

Answer:

Enhancement

Explanation:

which body parts does a turkey use to fight predators

Answers

Answer:

When fighting off predators, turkeys may kick with their legs, using the spurs on their back of the legs as a weapon, bite with their beak and ram with their relatively large bodies and may be able to deter predators up to the size of mid-sized mammals.

Explanation:

Answer: When fighting off predators, turkeys may kick with their legs, using the spurs on their back of the legs as a weapon, bite with their beak and ram with their relatively large bodies and may be able to deter predators up to the size of mid-sized mammals.

Explanation:

The spread of information from one neuron to several neurons, or from one pool to multiple pools, is known as __________.

Answers

Answer:

Divergence

Explanation:

Divergence is the answer because divergence spreads information to several neurons.  

What is a chemical reaction from your teeth

Answers

Answer: Calcium ions, phosphoric acid and water.

Explanation: Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water. The products of the reaction are calcium ions, phosphoric acid and water. All of these exist in chemical equilibrium with the crystalline calcium phosphate.

Answer:

calcium ions, phosphoric acid and water

Explanation:

Calcium phosphate and hydrogen ions undergo a reversible reaction with calcium ions, phosphoric acid and water

How do consumers obtain energy and nutrients?

how do consumers obtain energy and nutrients

Answers

Answer:

They eat

Explanation:

Consume-er

Answer:

by eating other organisms.

hope this is right. Let me know:)

Explanation:

If you see a bird flying toward you this information is most likely processed in the: a. avian lobe b. temporal lobe c. occipital lobe d. limbic system

Answers

Occipital lobe processes visuals so, C.

If you see a bird flying toward you this information is most likely processed in the occipital lobe.

What is occipital lobe?

Occipital lobe lies at the back of the brain and is responsible for the vision, colour and motion of an object. It also helps in memorizing the shape, structure or face of an object.

The occipital lobe is situated in the cerebrum part of the brain between the parietal and temporal bone.

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Describe the following features of processes evaluation leaching zone of accumulation and hardpan. PLEASE HELP ME ITS DUE IN 10 MINS. NO LINKS!!!

Answers

Explanation:

As soils mature, they develop soil horizons as organic matter accumulates and mineral weathering and leaching take place.


I need to know the answers to what the solutions are.

Answers

Answer:

honestly same.

Explanation:

I don't know this complex science

your computer records the raw sequencing data shown below. how many different sequences are represented in this dataset?

Answers

Answer: 3


Hope this helps :)

Construct a table to give ONE source, the functions and the effects of the deficiency of the following micronutrients, Vitamin C, Vitamin D, Iron and iodine.​

Answers

Answer:

I say Vitamin D.

Explanation:Confirmed with the test results.

what will happen to the cell?

A. it will shrink
B. nothing
C. it will explode​

Answers

Answer:

B

Explanation:

which region of the brain contains gyri and sulci?

Answers

Answer:

The cerebral cortex, or the outer layer of the cerebrum

Explanation:

The best advantage of sexual reproduction is?
It is more efficient than asexual reproduction
It is safer than asexual reproduction
It results in identical offspring
It increase genetic diversity through meiosis, crossing over, and random assortment of chromosomes

Answers

Answer:

it increase the genetic diversity through meiosis , crossing over and random assortment of chromosome

Explanation:

There are two main processes during sexual reproduction: meiosis, involving the halving of the number of chromosomes, and fertilization, involving the fusion of two gametes and the restoration of the original number of chromosomes.

while asexual reproduction doesn't form any reproduction that involves neither meiosis nor fusion of gametes

Explain what are some examples of internal structures that allow organisms to survive in their environment?

Answers

Answer:

Plants and animals have many structures that help them survive. Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. ... Other structures are more common, like a heart.

Explanation:

Answer:

lungs, fat, skeletal system

Explanation:

Given that breaking bonds requires energy and forming bonds releases energy, explain how we know that cellular respiration releases energy overall?

Answers

Cellular respiration releases energy because the bonds in carbohydrates are broken during the reaction.

During cellular respiration, carbohydrates are broken down in a series of reactions, and the energy in the bonds is released as ATP, the energy currency of cells.

The reaction is in 3 steps:

GlycolysisKreb's cycleElectron transport chain

The summary of the reactions is represented by the equation below:

[tex]C_6H_1_2O_6 + 6O_2 ---> 6CO_2 + 6H_2O + ATP[/tex]

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why it is important that the product of mitosis are two identical daughter cells.

Answers

Answer: Mitosis involves the division of a cell into two identical daughter cells. Each daughter cell needs a copy of every chromosome, so the process begins with cutting the chromosomes into manageable copies, so the process involves copying the chromosomes and then separating them and then so each cell has the full set. chromosomes have exactly 23 pairs of chromosomes, its hard to remember because you can also say 46 chromosomes but never say 46 pairs because doing so will result into you saying 92 chromosomes. you can either say 23 pairs or 46 chromosomes.

Hope it helps,

If you can play please me for Brainliest.

Explanation:

Which part of the plant cell does photosynthesis occur? Please help

Answers

Answer:

Photosynthesis occurs in the chloroplast of the plant cell.

Explanation:

Although a liver cell and a muscle cell in a human cell develope from the same single cell, their appearance and function is different. This is because their liver cell is?

Answers

Answer:

liver cells:

contain different genes than the muscle celldestroyes the muscle cell genes it contains lacks the genes found in muscle cells

importance of blood circulation​

Answers

Answer:

Proper circulation is key for maintaining optimal health. It ensures that blood and oxygen continuously flow throughout the body, allowing every organ to function properly. It helps to heal wounds faster, it keeps your brain sharp, it keeps your heart healthy, and it even gives your complexion a natural flush.

Explanation:

would you mind to brainliest my answer?

If the first nucleotide after the promoter on the bottom DNA strand is changed from C to T, what would the resulting nucleotide be on the mRNA

Answers

I’m pretty sure it’s G U

When the DNA's C is changed to T, the corresponding nucleotide on the mRNA strand will be A (adenine) to maintain the complementary base pairing.

Nucleotides encode genetic information in DNA. Due to complementary base pairing laws, DNA sequence alterations impact mRNA transcript nucleotides. If the first nucleotide following the promoter on the bottom DNA strand changes from C (cytosine) to T (thymine), the matching mRNA strand nucleotide becomes A.

Because C pairs with G (guanine) in DNA and RNA. T in DNA matches A in RNA owing to complementary pairing. The DNA sequence will influence the mRNA sequence during transcription, which may impact the protein synthesised during translation.

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Chlorophyll changes ______ energy into ______ energy.

Answers

Answer:

Light energy to chemical energy

Explanation:

the conversion of light energy to chemical energy needs chlorofluorocarbon

Polysaccharides, triglycerides, and proteins are similar in that they?
a) all contain nitrogen in other monomer building blocks
b) are decomposed into their subunits by dehydration reactions
c) are synthesized from subunits by dehydration reactions
d) are synthesized from monomers by the process of hydrolysis

Answers

Answer:

d

Explanation:

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