Which of these factors make hydrogen fuel cells a better option than burning fossil fuels?
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution.
Burning fossil fuels relies on outdated devices and technology.
Hydrogen is the most abundant element in the universe.
Hydrogen fuel cells are more expensive than fossil fuels.
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution
i got it right on the assignment
The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency. So, the correct options are A and B.
What is Hydrogen fuel cell?The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency.
Because they transform the chemical energy of hydrogen and oxygen into electricity with an efficiency of about 50–60% as opposed to the 30–40% of burning fossil fuels, hydrogen fuel cells are more energy efficient than burning fossil fuels. This increases efficiency and reduces waste by converting more of the fuel's stored energy into usable work.
Burning fossil fuels produces a variety of pollutants, including carbon dioxide, nitrogen oxides, sulphur dioxide, and water, whereas using hydrogen fuel cells only produces heat and water as byproducts.
Therefore, the correct options are A and B.
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A solar eclipse occurs when the moon
1. passes into the penumbra of earth
2. passes into the umbra of earth
3. passes at a slight tilt between Earth and the sun
4. passes directly between Earth and the sun
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Heterozygous for pod shape.
A. SS
B. Ss
C. ss
Define a population in your own words. Will give brainliest
Answer:
A population is a calculated number of a certain group of a living thing in a given area such as the human population of California is showing the amount of people in the area known as California
A mutation in which cell would only affect the organism and not future generations
A. Sperm cell and lung cell
B. Sperm cell and egg cell
C. Nerve cell and brain cell
D. Egg cell and liver cell
Answer: B. sperm cell and egg cell
Explanation:
The diagram shows light- and dark-colored beetles that live on a tree.
Predator and Prey Relationship
Which result is most likely to occur to the beetle population due to predation over time?
Answer
F. The number of light-colored beetles in the population will increase
G There will be more dark-colored beetles than light-colored beetles
H The number of light-colored beetles will decrease
J
The dark-colored beetles will move to a different type of tree.
Answer:
F
Explanation:
I believe it F since there are far more light colored and the tree is a light color making them a bit camouflage but for black it will decrease since it's a different color from a tree making it easy to see
Based on the information provided, it is most likely that the number of light-colored beetles in the population will decrease over time due to predation, so the answer is option H
What is Predator and Prey Relationship?The light-colored beetles are more visible to predators, and therefore, are more likely to be eaten than the dark-colored beetles. As a result, over time, the proportion of dark-colored beetles in the population may increase, while the proportion of light-colored beetles decreases.
This type of natural selection, in which individuals with certain traits are more likely to survive and reproduce than others, is known as directional selection. It can result in changes to the characteristics of a population over time.
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Sequence the steps in gene sequencing by writing the steps in order.
Answer:
It consists of two major steps: transcription and translation.
Explanation:
Together, transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene's DNA is transferred to a similar molecule called RNA (ribonucleic acid) in the cell nucleus.
What is a seismometer?
Answer:
an instrument that measures and records details of earthquakes, such as force and duration.
Answer:
It's a instrument that responses to ground motions
Explanation:
Which of the following statement is not true?
a. Exposure to electromagnetic fields is known to cause leukemia.
b. Excessive exposure to asbestos can lead to asbestosis.
c.Excessive exposure to radiations can cause health problems including cancer. d. Any sound above 80 dB is potentially dangerous.
Colorblindness is a sex-linked recessive trait carried on the X chromosome. If a woman with
normal vision marries a colorblind man, which will most likely be true of their children?
PLEASE PLEASE PLEASE HELP!!!!
Answer: NO BECUZ IF DA MAN IS COLOR BLIND HIS SPEM WONT BE COLOR BLIND AND SCINCE THE GRILL AINT COLLR BLIND DEN THE BABY AINT GON BE COLLOR BLIND. YA HERD
Explanation:
HELP ME PLEASE ill give brainliest
Answer:
Punnett square
B W
B BB BW
W BW WW
Explanation:
So genotype would be BB 25% as is WW and BW is 50%
phenotype would be black 25% as is white and black and white spots or patches or some such for 50%
which is a force that holds atoms together
Chemical bond
electron shell
valance electron
Chemical formula
Complete the table below to show the absorption of micro (small) nutrients, that are formed by the digestion of macro (large) nutrients.
Answer:
The correct answer is -
Protein - amino acids
Glycogen - glucose or monosaccharides
Fats - fatty acids
Explanation:
Once protein sources reach the stomach of an individual, An enzyme called proteases and HCl break these proteins into small amino acid chains that were bonded with a peptide bond, thus protein macronutrient is absorbed in the form of amino acid.
Glycogen is stored in the muscles and liver for energy and digested into glucose by enzymes called amylase and maltase.
Fats are the main source of fatty acid in the body and help in providing fatty acid for the body requirements.
Among apples, cherries, oranges, and watermelons, a serving of which fruit would raise the level of sugar in blood by the least amount? oranges apples cherries watermelons
Answer:
Watermelons
Explanation:
If a strand of DNA has 10% G,
A:
C:
T:
Answer:
C would be the corresponding 10%
that leaves 80% remaining so that would be split ~ equally between the remaining 2 base pairs so
40% A and
40% T
Explanation:
why is carbon is so important for life?
Answer:
Carbon permeates the world of life from the energy requiring activities and structural organizations of cells, to physical and chemical conditions that span the globe and influence ecosystems everywhere.
These organisms can be microscopic, or they can be quite large, as in giant kelp.
A. Viruses
B. Virons
C. Proteins
D. Protists
Answer:
Protists
Explanation:
Kelp is not a plant. It is a brown alga and is part of the large kingdom of life known as the Protista.
Who are the key players in dna replication
The key players in DNA replication are enzymes. These enzymes are helicase, primase, DNA polymerase, and ligase.
What is the role of enzymes in DNA replication?At the replication fork, the enzymes responsible for DNA replication work in concert to simultaneously synthesize the DNA's leading and lagging strands. The replication DNA polymerases (Polymerase III in E. coli) produce dimers to complete this activity.
The enzyme DNA polymerase, also referred to as DNA pol, is one of the main players. DNA pol I, DNA pol II, and DNA pol III are the three primary forms of DNA polymerases found in bacteria.
DNA pol III is currently understood to be the enzyme needed for DNA synthesis, whereas DNA pol I and DNA pol II are mostly needed for repair.
Therefore, the key players in DNA replication are enzymes. These enzymes are helicase, primase, DNA polymerase, and ligase.
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S.O.H.O. was in space near ACE. What is ACE?
Answer:
SOlar Heliospheric Observatory/ACE also provides near-real-time 24/7 continuous coverage of solar wind parameters and solar energetic particle intensities (space weather) /Advanced Composition Explorer (ACE)
Explanation:
Please help soon! real answer not a guess. Thank you so much!
A!
I hope this answer helped! please rate 5 stars >:)
please help asap....
Answer:
the second one
Explanation:
the second one
2) This graph shows how acid rain can impact life all around us. Which of
these is NOT one of the effects represented in the graph?
Plz help
Answer:
Radioactive waste disposable
Explanation:
QUIZLET
A group of scientists has recently created a strawberry with a new mutation. This mutation causes the strawberry plant to produce larger, sweeter fruit. However, the mutation also destroys the plant’s ability to send out runners. Where does this mutation need to occur if it can be passed on to future strawberry plants? A. the roots B. the leaves C. the stem D. the flowers Explanation please:) <33
Answer:
the flowers
Explanation:
because the flowers are the parts that turn into seed
the first filipino olympic medalist
is the intrusion the youngest rock in the section how do you know?
Answer:
Explanation:
The fault cuts through all three sedimentary rock layers (A, B, and C) and also the intrusion (D). So the fault must be the youngest feature. The intrusion (D) cuts through the three sedimentary rock layers, so it must be younger than those layers. By the law of superposition, C is the oldest sedimentary rock, B is younger and A is still younger.
URGENT WILL GIVE BRAINLY FOR RIGHT ANSWER
A.
Planet B will keep orbiting its star longer than Planet A.
B.
Planet B is more attracted to its star than Planet A.
C.
Planet A has a longer year than Planet B.
D.
Planet A orbits its star faster than Planet B.
Figure 1 shows red blood cells that have been placed in isotonic, hypotonic, and hypertonic solutions. Osmotic pressure causes changes in the red blood cells. Determine which type of solution is in A, B, and C and describe what is happening to the cells.
The diagram shows how wind can push warm surface water away from an area to be replaced with cold, nutrient-rich water from deep in the ocean. What is this process called?
A.
chemosynthesis
B.
drainage
C.
evaporation
D.
upwelling
Which has the larger ratio of surface area to volume, a tennis ball or a soccer ball?
Answer: Soccer Ball
Explanation: Because it is bigger and could hold more air.
The answer is Soccer Ball. Just because it is bigger and could hold more air.
What is the ratio of the surface location to extent limits?The ratio of surface place to an extent limits the dimensions of the cell textbf{the size of the cell} the dimensions of the mobile. This is due to the fact that the quantity of mobile will increase swiftly, the mobile's floor region decreases, to the factor that the ratio of floor place to an extent is a small price.
The surface vicinity to extent ratio is important for cellular diffusion in addition to cell department. So that you can live, cells require nutrients and oxygen to skip into the cell via its cell membrane, and they require waste to go away from the cells within the contrary course.
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Energy and mass is the square of its speed. True or false
Answer:
I think it's "False" cause they haved they're own moved
