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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When water is moving through the water cycle, what has to change in order for the water to move?
Answer:
The state of watwe
Explanation:
In order for the water cycle to happen, water has to change it's state from liquid to gas
What are some things that are hard to classify as living or non living things?
Answer:
Non living things can be classified into
They exist in nature or are made by living things. There are three groups of nonliving things. They are solids, liquids, and gases.
Explanation:
cómo es la parte exterior del planeta tierra
What are capillaries?
Select one:
a.
blood cells that fight infection
b.
vessels through which nutrient and gas exchange take place
c.
chambers of the heart that pump blood throughout the body
d.
the liquid part of the blood that transports hormones
b. Capillaries are vessels through which nutrient and gas exchange take place.
Capillaries are the smallest blood vessels in the body and are responsible for facilitating the exchange of nutrients, gases, and waste products between the bloodstream and surrounding tissues. They connect the arterioles (small branches of arteries) and venules (small branches of veins).
Capillaries have thin and permeable walls, consisting of a single layer of endothelial cells. This structure allows for the exchange of substances between the blood and surrounding tissues. Oxygen and nutrients diffuse out of the capillaries into the tissues, while carbon dioxide and waste products from cellular metabolism diffuse into the capillaries to be carried away.
The extensive network of capillaries ensures that every cell in the body is located in close proximity to a capillary, allowing for efficient exchange of substances. This exchange includes the delivery of oxygen and nutrients to the cells, as well as the removal of carbon dioxide and waste products.
While blood cells, such as red blood cells and white blood cells, are present in the capillaries, they are not the defining characteristic of capillaries. Instead, capillaries are primarily associated with facilitating the exchange of substances between the bloodstream and the surrounding tissues.
Therefore, option b is the correct answer as it accurately describes the role of capillaries in facilitating nutrient and gas exchange.
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Why are differences and similarities in DNA and proteins evidence of evolution?
Answer:
Homologous structures provide evidence for common ancestry analogous structures show that similar selective pressures can produce similar adaptations beneficial features Similarities and differences among biological molecules in the DNA sequence of genes can be used to determine species relatedness
What would be the complementary sequence: CCGTCATC
Answer:
CCGTCATC
GGCAGTAC
Explanation:
C goes with G. A goes with T.
As the amount of water vapor in the air increases, what happens
A. The temperature increases
B. The relative of humidity increases
C. The temperature decreases
D. The relative of humidity decreases
Answer:
B
Explanation:
Since the beginning of the Solar system, all planets orbit or revolve around the barycenter of the solar system in a counterclockwise direction. true or false?
Answer:
True
Explanation:
Barycenter is the center of mass of an object. Since the beginning all planets and sun have been revolving around their center of mass. This center of mass evidently is the center of the solar system . The satellite, planet and sun has been revolving and rotating in the counterclockwise around the barycenter as well as their axis
Describe the chemical composition of bone.
please answer in your own words
What is a neuron? What is its job?
Answer:
Neurons, also known as nerve cells, send and receive signals from your brain.
JOB; Neurons are information messengers. They use electrical impulses and chemical signals to transmit information between different areas of the brain, and between the brain and the rest of the nervous system.
Explanation:
HELP ASAP 100 POINTS ACTUAL ANSWERS OR I WILL REPORT
1- How did economics delay scientists’ first attempts for conservation in the forest industry?
Think about MONEY involved for conservation.
2- Describe the political actions that led to successful conservation in the forest industry.
Think about ORGANIZATIONS from each article.
ANSWER FOR BOTH
Community Conservation Using Forests Wisely
Answer:
causing them to lose their shelter. also gave money
Explanation:
Where would a frameshift mutation cause the most damage?
Near the very end of the gene
Near the beginning of the gene
Near the center of the gene
All frameshift mutations are equal
What are some terms that describe cells that fight infections? Check all that apply
White blood cells
Red blood cells
phagocytes
B-cells
pathogens
Answer:
WBC : white blood cells
Explanation:
I Hope it's helps u
PLEASE HELP! - Describe why carbon, hydrogen, oxygen, nitrogen, & other elements can combine. Describe the results of these combinations.
Answer:
Carbon, Oxygen, Hydrogen And Nitrogen - Have In Common? They All Have The Same Number Of Valence Electrons. They All Have Unpaired Electrons In Their Valence Shells. They Are Elements Produced Only In Living Cells.
2 points
It's February, you're excited because it finally snowed enough to miss
school. You go outside with just jeans and a t-shirt on. Provide two
examples that tell me how your body responds to this environment so you
can maintain Homeostasis.
Your answer
Answer:
jayfeather loved halfmoon but it was forbiden
Explanation:
Photosynthesis is to oxygen as:
A. Oxygen is to carbon dioxide
B. Cellular respiration is to carbon dioxide
C. Cellular respiration is to oxygen
D. Cellular respiration is to enzymes
Help me out with this question please
Answer:
the third one
!!
Explanation:
How did science play a role in diagnosing the water problem in Flint
Answer:
Explanation:
by desolving it
Which type of weathering is the result of water freezing and expanding inside the cracks of rocks when it freezes?
a.biological weathering
b.chemical weathering
c. frost wedging
d. deposition
Answer:
C. frost wedging
Explanation:
Frost wedging is the process by which water seeps into cracks in a rock, expands on freezing, and thus enlarges the cracks. So, therefore, the answer must be C.
1. What is the goal of mitosis?
Eukaryotic cells grow and divide through a series of events called the
cell cycle as shown in the diagram below. Based on the information
provided, what are the three main phases of the cell cycle?
Answer:
Please, you stated : "Eukaryotic cells grow and divide through a series of events called the cell cycle as shown in the diagram below." what diagram???
Here some yummy anime wafius if you're hungry
Answer:
animes b! tches
Explanation:
whats yoir fav anime
Answer:
No the reason foe this is because I dont like people
Explanation:
hi
Scientists group organisms into three domains: Archaea, Bacteria
and Eukarya. In which domain are animals classified and why?
O Archaea, because animals live a long time.
O Bacteria, because animals are unicellular.
Bacteria, because animals make their own food.
Eukarya, because animal cells contain genetic information inside of
nuclei.
Answer:The answers is D
Explanation:I got a 100 on the test. Also if you look up what domain are animals it will tell you they are eukarya.
Explain what you would have to do to the date on your watch if you were tocross over the International Date Line from east to west.
a. Change it to the next day
b. Move it back 1 day
c. Change it to the next year
d. Move it back 1 year
Answer:
(b)
Explanation:
The human activities in two locations are described below:
Location A: Rampant use of plastic containers
Location B: Excessive use of pesticides and fertilizers
Which statement is most likely true?
i would say b! if im wrong im sorry...
Buttermilk, yogurt, cottage cheese, and alcohol are some of the foods that are produced by bacteria performing the process of -
Answer:
dairy products? I'm not to sure
According to the passage, which of the following best describes genetic engineering?
A
useless
B
destructive
с
impossible
D
innovative
Answer:
innovative
Explanation:
By correcting genetic flaws, gene therapy aims to prevent or treat hereditary illnesses. The goal of genetic engineering is to alter the genes to give a creature new, enhanced skills. Thus, option D is correct.
What is the role of genetic engineering?The direct altering of an organism's genome through biotechnology is referred to as genetic engineering, sometimes known as genetic modification.
It is a group of scientific techniques used to change the genetic makeup of cells, including the movement of genes within and between species, to produce more advantageous or altogether different creatures.
Applications for genetic engineering include technology, agriculture, and scientific research.
Genetic engineering has been used on plants to enhance the hardiness, nutritive content, and growth rate of crops like potatoes, tomatoes, and rice.
Therefore, innovative best describes genetic engineering.
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How does embryology support evolution?
to -10.0 °C, wait until all the water has frozen, and then wait a little while more. What happens to the ice temperature after all the water is frozen?]
Answer:
Explanation:
I believe it will just get colder tbh
What does it mean when an arrow is pointing toward an organism
do you mean like in a food chain? if so, if an arrow is pointing from one organism to another organism, it means that the organism the arrow is bring pointed toward is going to consume the previous organism. for example, if part of a food chain shows grass and then an arrow pointing from the grass to a deer, that means the deer will be consuming the grass.
i hope this helps! i also hope that i didn't completely misunderstand the question lol but i'm pretty sure this is what you were asking about :) have a great day!
