Which of the following correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life?
It is easy to store safely and distribute globally.
It allows for the same efficiency as gasoline-run engines.
It can be used to power small and large electrical systems.
It can only be used without combining with other energy resources.
The statement that correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life is It is easy to store safely and distribute globally.
What is Hydrogen fuel cell technology?Hydrogen fuel technology is the technology in which electricity or water or heat are generated in electrochemical cell when Hydrogen react with oxygen.
Therefore, The statement that correctly describes a positive way in which hydrogen fuel cell technology can affect environmental quality or way of life is
It is easy to store safely and distribute globally.
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Answer:
this is not the answer It is easy to store safely and distribute globally.
Explanation: i got it wrong
What is environmental justice?
Answer:
Environmental Justice is the fair treatment and meaningful involvement of all people regardless of race, color, and national origin.
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Thanks for asking the question!!
The weakest agent of erosion
a.
water
c.
chemical weathering
b.
heat
d.
wind
Please select the best answer from the choices provided
A
B
C
D
Answer:
d. wind
Explanation:
<3
Answer: it is d
Explanation:
The DNA in a strain of E. coli contains 32 % adenine. What percentage of DNA is cytosine
Answer:
The DNA of E. coli contains 19,120 6-methyladenines and 12,045 5-methylcytosines in addition to the four regular bases and these are formed by the postreplicative action of three DNA methyltransferases. The majority of the methylated bases are formed by the Dam and Dcm methyltransferases encoded by the dam (DNA adenine methyltransferase) and dcm (DNA cytosine methyltransferase) genes. Although not essential, Dam methylation is important for strand discrimination during repair of replication errors, controlling the frequency of initiation of chromosome replication at oriC, and regulation of transcription initiation at promoters containing GATC sequences. In contrast, there is no known function for Dcm methylation although Dcm recognition sites constitute sequence motifs for Very Short Patch repair of T/G base mismatches. In certain bacteria (e.g., Vibrio cholerae, Caulobacter crescentus) adenine methylation is essential and in C. crescentus, it is important for temporal gene expression which, in turn, is required for coordinating chromosome initiation, replication and division. In practical terms, Dam and Dcm methylation can inhibit restriction enzyme cleavage; decrease transformation frequency in certain bacteria; decrease the stability of short direct repeats; are necessary for site-directed mutagenesis; and to probe eukaryotic structure and function.Explanation:
which environmental changes occur fastest?
A. changing seasons
B. climate change
C. oil spill
D. pond succession
Answer:
The answer is B
Explanation:
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the somatic nervous system controls
A. voluntary functions such as tying your shoes
B. involuntary functions such as tying your shoes
C. involuntary functions such as heart rate
D. Voluntary functions such as heart rate
Answer:
A. voluntary functions such as tying your shoes.
What factor is described as movement into or out of a population? A. non-random mating B. migration C. small populations D. natural selection
The movement into or out of a population is known as migration.
What is migration?Often, individuals in a population have new individuals that join the population or leave the population. In fact some species have seasons of the year in which they move from one location to another.
The movement into or out of a population as described above is otherwise known as migration.
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How does primary and secondary succession affect ecosystems? Give examples
Answer:
Explanation:
Primary succession makes an ecosystem virtually start all over. For example a nuclear explosion wipes out anything and everything in its path. This makes the exosystem start all over and rebuild itself. The secondary succession will only partially make the escosystem restart. For example a forest fire may wipe out some trees however there is still soil avalible for the ecosystem to grow back more easily
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Based on the phylogenetic chart, which three statements are true about the relationship between organisms?
Answer:A phylogenetic tree is a branching diagram showing evolutionary relationships among various living organisms based upon similarities and differences in their physical or genetic characteristics like the one above. In this case a human is more closely related to a mouse than a kangaroo, A platypus is more closely related to a kangaroo than a mouse, a human and a kangaroo share common features because of a common ancestor.
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Odor molecules landing on the cheeks would fail to elicit olfaction due to a mismatch in ____________ of the stimulus.
Answer:
Odor molecules landing on the cheeks would fail to elicit olfaction due to a mismatch in tonic of the stimulus.
Explanation:
which structures contain endolymph
I need help with this question
Answer:
Nebraska
Explanation:
"According to the 2019 Cattle Inventory, Nebraska’s 6.8 million head of cattle ranks as the second-highest in the US. With a population of about 1.8 million people, cattle greatly outnumber people in the state. Although Nebraska has recorded minimal growth in its cattle inventory, it remains one of the most important states in terms of cattle production. Agriculture is the biggest industry in Nebraska, and cattle production represents the largest segment of the agriculture industry. The state has approximately 23 million acres of pastureland and rangeland, half of which is located in the Sandhills."
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choose all that apply
Some landforms you might see while traveling across the country could be
mountains
forests
hills
rivers
glaciers
Answer:
forests, hills, rivers, and maybe mountains.
Explanation:
I'm right you are wrong.
Grade 7 life science
Answer:
RNA leaves the nucleus during the process and DNA remains in the nucleus
Explanation:
DNA cannot leave the nucleus which is why RNA is made. A certain type of RNA, called mRNA (a.k.a. messenger RNA), leaves the nucleus to form proteins
Answer:DNA transforms from a nucleic acid into a protein, and RNA remains a nucleic acid
Ben wants to be on the basketball team, but he's worried he won't make it to the team. He spent weeks working out as hard as possible, preparing for try outs. At try outs, he amazes the coaches with his skills as good player. They ask him to be their starting player that year and give him a jersey. Ben leaves the court happily!
II. Match the events in column A with the correct element of a plot in column B.
COLUMN A
14. He spends weeks working out as hard as possible, preparing for try outs.
15. Ben wants to be on the basketball team but he's worried he won't make the team.
16. At try out, he amazes the coaches with his skill as a player
17. Ben was given a jersey.
18. Ben leaves the court happily!
COLUMN B:
A. Exposition
B. Rising Action
C. Climax
D. Falling Action
E. Resolution
PLEASE ANSWER IT I REALLY NEED THE ANSWER
NONSENSE REPORT
The moon is made of rocks and dirt
Sick, never knew that :O thanks
A shoulder joint with tissue between the bones highlighted.
What is the flexible connective tissue shown in blue?
tendon
bone
cartilage
muscle
Answer:
I can confirm that c aka cartilage is the right answer if it is right pls like ty
Explanation:
Use the data and what you have learned about evolution to explain how mutation is a random process, but natural selection is not random.
The data are not found here, but evolution means 'descendence with modification', which may occur due to natural selection and mutations.
What is evolution?Evolution is descendence with modification, which generally is caused by a process called natural selection.
Natural selection 'selects' the most adaptive variants in the population, which occurs due to the emergence of mutations.
A mutation is any genetic change in the nucleotide sequence of the genome of an individual.
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What are the three categories of the 2nd line of defence in the immune system?
Answer:The immune system's three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.
Explanation:
Is zebra black with white stripes or white with black stripes?
Answer:
Zebras are black with white stripes.
Explanation:
hope this helps.
Answer:
white with black stripes
Explanation:
zebras are white and have black stripes, the other answer is saying that zebras are black with white stripes, which is made to throw you off.
How is the sun a special star?
Answer: "How is the sun a special star?"
Explanation: The sun is our largest energy source, It heats our planet and gives us seasons, It helps plants grow.
energy is radiated by ?
Answer:
Electromagnet
Electromagnetic radiation is produced by charged particles accelerating through space.
Explanation:
Hope it helps
what is the uses of enter key
Answer:
the uses of enter key is to enter a question or look up things and sometime to play computer games hope this helps. :)
Explanation:
Answer:
Also called the "Return key," it is the keyboard key that is pressed to signal the computer to input the line of data or the command that has just been typed.
It Was the Return Key
The Enter key was originally the "Return key" on a typewriter, which caused the carriage to return to the beginning of the next line on the paper. In a word processing or text editing application, pressing Enter ends a paragraph. A character code for return/end-of-line, which is different in Windows than it is in the Mac, Linux or Unix, is inserted into the text at that point. See CR/LF.
How does the binding affinity of a transcription factor to DNA affect the efficiency of Protein Synthesis?
Answer:
The addition of transcription factor-binding sites could affect relative DNA replication efficiency in a number of ways. Each added site could produce an additive increase in replication efficiency, or one of the added sites could be responsible for all of the observed increase in RRE.
what is the function of epidermis
Provides a protective barrier against mechanical, thermal and physical injury and hazardous substances. Prevents loss of moisture. Reduces harmful effects of UV radiation. Acts as a sensory organ (touch, detects temperature).
hope it helps...!!!
Answer:
the epidermis is the top layer of skin in your body it has functions in cluding protecting your body from the outside world kepping your skin hydrated producing new skin cells and determining your skin color hope this helps.:)
Explanation:
A duplicated homologous chromosome pair contains how many copies of genes ?
A.) 2
B.) 4
C.) 8
D.) 16
E.) 32
A duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.
How many copies of gene present in a chromosome?The two homologous copies of gene present in each chromosome so for the two chromosomes, four genes copies are present.
So we can conclude that a duplicated homologous chromosome pair contains 4 copies of genes because each chromosome has two copies of gene.
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In a pond environment there are bacteria (Monera), protozoa (Protista), water hyacinths (Plantae),
and minnows (Animalia). Which of these organisms could exist at the bottom of the pond food web?
Answer:
minnows which is in kingdom animalia
Outline the biochemical pathways which enables cells to produce energy using glucose and oxygen
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.
What is respiration?Respiration is the process in which cells use oxygen to break down sugar in order to obtain energy. Glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation are the stages of cellular respiration.
So we can conclude that Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP.
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During practice, a soccer player kicks a ball and sends it rolling across the grass. Over a short distance, the ball slows down and stops.
Which two statements support the idea that energy is conserved in this example?
According to law of conservation of energy , statement B and D support the idea of energy being conserved.
What is law of conservation of energy?According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .The law is now called as the first law of thermodynamics.
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of energy is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.
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Define the word ubiquitous, and provide examples showing why this is an appropriate term to use when describing microbes.
Answer:
Ubiquitous refers to any living being or the nonliving thing that is present everywhere. Microbes such as bacteria are ubiquitous
Explanation:
.