Air pollution is defined as the pollution of the air and its surroundings due to air pollutants where chlorofluorocarbons (CFCs) are the most common source of air pollution. So, the correct option is B.
What are Chlorofluorocarbons?Chlorofluorocarbons (CFCs) are defined as non-toxic chemicals containing chlorine, fluorine and carbon that are extensively used in the manufacture of refrigerants, foams, sprays, etc. Chlorofluorocarbons destroy the Earth's protective ozone layer by affecting its ability to shield harmful UV rays from the Sun, which is why they are banned because of their dangerous effects on ozone.
CFCs are emitted which get accumulated in the earth's atmosphere causing greenhouse effect which causes melting of ice and rise in sea level leading to rise in temperature.
Therefore, the correct option is B.
Learn more about chlorofluorocarbons, here:
brainly.com/question/1437480
#SPJ7
please answer this for me
the answer is D !!!!!!!
Answer:
maco shark
Explanation:
It is a fast speed-swimming shark that has been called “the peregrine falcon of the sharks” in allusion to the fastest bird in the world. It is considered an animal dangerous to humans because of the speed which can attack and its ability to jump into the fishing boats.
what allows for differences between individuals due to differences in inherited DNA?
a. genetic variation
b. meiosis
c. interphase
d. mitosis
los derechos sexuales son iguales a los reproductivos? porfa help
Describe how the lizard population is changing
Answer:
Each time lizards colonized an island, they evolved into many of the same forms. .Other lizards adapted to life among the thin branches lower down on the trees, evolving short legs that help them hug their narrow perches. Still other lizards adapted to living in grass and shrubs, evolving long tails and slender trunks.Lizards are low on the food chain. Providing protection from their natural predators ensures their continued existence. Plant bushy perennials, create a rock or brush pile or use man-made items like stacks of bricks or pipes.
Which graph represents selection that may lead to reduced variation
in a population?
The frequency graph represents selection that may lead to reduced variation in a population.
which of the following is the best definition of a saturated fatty acid
Answer:
A saturated fatty acid is a basic unit of lipid that consists of only single carbon to carbon bonds. ... Saturated fatty acids are solid in room temperature(animal fats) and unsaturated fatty acids are liquid in room temperature(oils/plant fats)
Explanation:
Have a nice day :)
easy biology question below first correct answer gets brainliest
Answer
B
Explanation:
if,k
Answer:
the answer is ....C
.........
Photosynthesis is the process where the sun's energy is converted in to
chemical energy
*
True
False
Answer:
True
Explanation:
The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.
What are the raw materials (reactants/goes into) for photosynthesis?
A. water and glucose
B. carbon dioxide and water
C. glucose and oxygen
Answer:
c
Explanation:
where are 70s type of ribosomes found in eukaryotic cells.
What are the raw materials that are needed for photosynthesis?
A. glucose and oxygen
B. water and glucose
C. carbon dioxide and water
Answer:
C. carbon dioxide and water
Explanation:
The raw materials that are needed for photosynthesis are carbon dioxide and water. So, option (C) is correct answer.
A biology teacher asks his class to make models of a plant cell, an animal cell, and a bacterial cell. Aside from cytoplasm and the cell membrane which other cell structure will the students need to make all three models?
A. Ribosome
B. Nucleus
C. Golgi Apparatus
D. Chloroplast
E. Cell wall
Should people be allowed to use gene therapy to enhance basic human traits such as height intelligence or athletic ability?
Answer:
no, of course not
Explanation:
Would you use drugs to gain a competitive advantage in sports? No, its against the rules and also unethical. It's not healthy. You've seen Jurassic Park right? It would lead to ruin.
Which list shows organization of living things from the simplest to most complex?
A organ system, organ, tissue, cell
B tissue, cell, organ, organ system
C organ, organ system, cell, tissue
D cell, tissue, organ, organ system
Answer:
d
Explanation:
Because you need the cell to become tissue then the tissue Becomes organs then a bunch of organs become a organ system
What happens in the anther?
A. Eggs are made
B. Photosynthesis takes place
C. Pollen is produced
Answer:
C. Pollen is produced
Explanation:
The pollens are produced in the anther. So, option (C) is the correct answer.
the more mass an object has, the more _____ it needs in order to move. A. Force B. Inertia
Answer:
Force it need in order to move
Answer:
A. force
Explanation:
inertia is that it keeps moving force gets it moving
Which of the following describes the relationship between genes and
chromosomes?
Chromosomes form into genes during cellular reproduction
Genes are special sequences of nucleic acids found on chromosomes
Every gene an organism has is found on every one of its chromosomes
All of an organism's chromosomes can be found next to its genes in the cell nucleus
Answer:
Genes are special sequences of nucleic acids found on chromosomes.
Explanation:
A single DNA molecule is a chromosome. A gene is a certain chromosome region of DNA.
All cells of the body are genetically the same, but cells are different from others because specific gene sets are expressed. Different cells, therefore express different genes, which enable them to perform a specific function.
The deoxyribonucleic (DNA) genes are segments that contain a code for a certain protein that works in one or several cell types in the body. Chromosomes are cellular structures that contain the genes of a person. Genes that are in the cellular nucleus are contained in chromosomes.
Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.
a metal hammer
a wooden ruler
a plastic car
the metal frame of your chair
the paper in your notebook
the screws and nails that hold your desk together
Answer:
The correct answer is - 1. a metal hammer
4. the metal frame of your chair
6. the screws and nails that hold your desk together.
Explanation:
Bar magnets are rectangular objects made up of ferromagnetic objects or substances and must carry the north and south pole ends. These objects show ferromagnetism and attract any ferromagnetic metal such as iron, steel or ferromagnetic composite.
In the case of the same ends, for instance, the north-north pole of two magnets repulse and opposite attract to one another. From the given options the correct answer is a metal hammer, the metal frame of chair and screws and nails that hold the desk.
Answer:
A.)
D.)
F.)
Explanation:
The person above me is correct, please say thanks to them
Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green (8,023 total). Which of the following statements correctly describes the relationship of the allele for green soods to the allele for yellow seeds? A. The green allele is dominant to the yellow allele B. The two alleles exhibit incomplete dominance C. The green alicle is recessive to the yellow allele D. The two alleles are codominant
Answer:
C. The green allele is recessive to the yellow allele
Explanation:
Complete dominance occurs when one gene variant or allele referred to as the 'dominant allele' completely masks the expression of another allele referred to as the 'recessive allele' in heterozygous individuals, i.e., in individuals carrying one copy of the dominant allele and one copy of the recessive allele for a particular locus/gene (whereas homo-zygous individuals carry the same alleles for a given locus/gene). Mendel crossed pure lines of pea plants, i.e., homo-zygous lines for different traits such as seed color (yellow and green) and seed shape (round and wrinkled). In this case, the parental cross was YY x yy, where the 'Y' allele is dominant and encodes for yellow seed color, and the 'y' allele is recessive and encodes for green seed color. From this cross, Mendel obtained a hybrid F1 (i.e., all progeny was heterozygous with genotype Yy). An expected 3:1 ratio as observed in this case (6,022 yellow and 2,001 green seed >> 3:1 ratio) is characteristic of the progeny that results from mating between F1 heterozygous parents, where each parent has one dominant allele and one recessive allele, i.e., F1 parental cross: Yy x Yy >> F2: 1/4 YY (yellow color); 1/2 Yy (yellow color); 1/4 (green color) >> 3:1 ratio of yellow to green seeds.
fungi and bacteria are_____.
-plants -producers -decomposers
Answer:
decomposers
Explanation:
Answer:
decomposer
Explanation:
Fungi and bacteria are the most common decomposers.
The variable your measuring during an experiment would be the?
Why is there a higher rate of skin cancer in Australia than in other
parts of the world?
Answer:
In Austrailia there is the highest rate of skin cancer because there is so much sunlight and most austalians have the wrong skin type for thier environment meaning people with pale skin get burnt more easily
Explanation:
Australia has a high rate of skin cancer because there's something different about the sunlight in Australia, and most people in Australia have skin that is easily damaged by light from the sun. Light carries energy that can make materials change. Therefore, Australia has a high rate of skin cancer because the ozone layer is damaged by the energy carried from the UV Light, being absorbed by the ozone and damaging allowing that light to transmit through and damage the genetic material of those individuals with lower levels of melanin.
What do hypothesis, theories, and laws have in common ?
what is the essence of setting up experiments in replicates?
Answer: Importance of replication in experiments
Explanation: Getting the same result when an experiment is repeated is called replication. ... Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.
What happens to cause air to be exhaled from the lungs?
A)The rib muscles contract and move upward
B)The chest cavity expands and grows larger
C)The diaphragm relaxes and moves upward
D)The lungs contract and expand
Answer:
The answer is C.
Explanation:
When you breathe out or exhale, your diaphragm relaxes and moves up into your chest cavity. As the space in your chest cavity gets smaller, the air rich in carbon dioxide is forced out of your lungs and windpipe, and then out your nose or mouth.
The picture above shows onion root cells in various stages of mitosis.
The arrow is pointing to a cell in -
Answer:
Anaphase.
Explanation:
You can see the separation happening. This is anaphase.
Hope this is correct, good luck on your studies.
Be a Lunatic
A solar eclipse happens when --
the sun is directly between Earth and moon
the moon is in Earth's shadow.
the moon is directly between Earth and sun.
the sun blocks out light from Earth.
When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse. Lunar eclipses can happen only when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon.
Explanation: im just smart like that
Explain how specialized structures found in multiflora rose support its reproduction and spreading/dispersal throughout ecosystems in the United States. Use evidence and scientific reasoning to support your response.
Answer:
Presence of thorn stems, invasive nature and strong scent of of multi rose plant.
Explanation:
The presence of thorn stems, invasive nature and strong scent of of multi rose plant are the specialized structures found in multiflora rose support its reproduction and spreading and dispersal throughout ecosystems in the United States. The presence of thorn stems prevent animals to feed on the multi rose plant while on the other hand, strong scent of of multi rose flower attract pollinators that increase its pollination and increase occur in its population.
EZ POINTS GRADE 2 SCIENCE PLEASE ANSWER FUE TOMRROWAEfKEAFEAS
fill in the blanks wiht the words givewn below
Answer:
1.) tides
2.) Salinity
3.) Oceans
4.) reef
5.) Intertidal Zone
6.) Neritic Zone
7.) Benthic Zone
8.) Reef
9.) Estuary
10.) Marine Biome
Hope this helps!
Identify the statement that describes the imperfection of natural selection. Identify the statement that describes the imperfection of natural selection. Natural selection has not had sufficient time to create the optimal design in each case but will do so given enough time. Natural selection is generally limited to modifying structures that were present in previous generations and in previous species. In many cases, phenotype is not merely determined by genotype but by the environment as well. Though we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design.
Answer:
Variability was seen as imperfection, so natural selection could only eliminate the inferior and imperfect, not giving rise to new things, new species.
:
