Answer:Additionally, the methods used to access these fuel sources (think fracking, ... For this reason fossil fuels are incredibly “energy dense“, meaning a little bit of a ... to abandon is the fact that they have been the main source energy in much of the
Explanation:
Can coal ever be truly a clean-burning fuel?
Answer:
Yes it can
Explanation:
Plsss anyone wanna help?
Answer:
I believe E is the correct answer..
Explanation:
Look at a cell model online. What does it show you? It's organelles and it's shape.
4. Which of the following is not a metamorphic rock?
schist
marble
limestone
anthracite
slate
The high-energy batteries from the question above are used to power another very important reaction in photosynthesis. What is the reaction?
Answer:
This question is incomplete but it can be answered based on general understanding.
The reaction is CALVIN CYCLE OR LIGHT-INDEPENDENT REACTION
Explanation:
The high energy batteries being referred to in this question IS ATP. ATP is an energy-storing molecule produced in the first stage or reaction of photosynthesis called LIGHT DEPENDENT REACTION. Photosynthesis, which occurs in two stages, produces ATP molecule in the first stage as a result of the charging of ADP into ATP.
The ATP molecule, which serves as a high energy battery, is used to power the second stage of photosynthesis called LIGHT INDEPENDENT REACTION OR CALVIN CYCLE in order to yield sugars.
Could I pls get help??
Answer:
The answer is E
Explanation:
A cell model demonstrates it's organelles and shape.
!Urgent!
If you were to examine a plant or animal cell under a microscope, what phase of the cell cycle would you most likely see? Explain your reasoning.
Answer:
Explanation:
During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).
If you were to examine a plant or animal cell under a microscope, you would most likely see the interphase of the cell cycle. This is the resting phase.
What is the cell cycle?The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next. The cell cycle can be divided into two phases. They are as follows:
InterphaseM-phase (Division phase).During the interphase of the cell cycle, the cell undergoes normal growth processes with the replication of DNA in the synthesis phase. Chromosomes are observed in a little bit condensed state during the mitotic division.
Apart from this, cells do not undergo many series of alterations. It follows the path of rest, and hence it is known as the resting phase. Chromatin is somehow observed in a condensed state loosely distributed throughout the nucleus of the cell.
Therefore, the interphase of the cell cycle would you most likely see, when you were to examine a plant or animal cell under a microscope.
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7. Which of the following is a physical change in matter that takes
place in the digestive system?
Answer:Mechanical digestion physically breaks down food, like when teeth macerate food into a bolus. The stomach contracts and relaxes in a churning motion. ... Chemical digestion occurs when the bonds within larger food molecules are broken, creating smaller molecules that the body can use.May 30, 2017
Explanation:
The process of ecological change in a community over time
Answer:
Ecological succession is the process of change in the species structure of an ecological community over time. ... It is a phenomenon or process by which an ecological community undergoes more or less orderly and predictable changes following a disturbance or the initial colonization of a new habitat.
Explanation:
Which of these is most likely to be true of an urban community ?
Answer:
An urban community has buildings. An urban community has more air pollution than other types of communities.
Answer all of them please ty
Answer:
23) 2 (egg)
24) 4 (fertalization)
25) 3 (8)
Explanation:
What does the name “Anthropocene” imply?
Answer:
Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments[1] and ecosystems, biodiversity, and natural resources[2][3] caused directly or indirectly by humans, including global warming,[1][4] environmental degradation[1] (such as ocean acidification[1][5]), mass extinction and biodiversity loss,[6][7][8][9] ecological crisis, and ecological collapse. Modifying the environment to fit the needs of society is causing severe effects, which become worse as the problem of human overpopulation continues.[10][11] Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth,[12][13] overconsumption, overexploitation, pollution, and deforestation, to name but a few. Some of the problems, including global warming and biodiversity loss pose an existential risk to the human race, and human overpopulation causes those problems.
Explanation:
The term anthropogenic designates an effect or object resulting from human activity. The term was first used in the technical sense by Russian geologist Alexey Pavlov, and it was first used in English by British ecologist Arthur Tansley in reference to human influences on climax plant communities.[19] The atmospheric scientist Paul Crutzen introduced the term "Anthropocene" in the mid-1970s.[20] The term is sometimes used in the context of pollution emissions that are produced from human activity since the start of the Agricultural Revolution but also applies broadly to all major human impacts on the environment.[21] Many of the actions taken by humans that contribute to a heated environment stem from the burning of fossil fuel from a variety of sources, such as: electricity, cars, planes, space heating, manufacturing, or the destruction of forests.
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Which of the following is NOT a common problem associated with inorganic fertilizers?
O They are often subject to leaching
O They can dry out, or desiccate, seedlings and young plants
O They may release insufficient nutrients and can deplete nitrogen in the soil
They can cause toxic residues to appear in conventionally grown fruits and vegetables
Answer:
They can cause toxic residues to appear in conventionally grown fruits and vegetables
Explanation:
Since inorganic fertilisers are made with chemical and such, they should not produce toxins.
Overuse of inorganic fertilizer destroys the physical characteristics of soil, hence, option d toxic more in conventionally grown vegetables and fruits is correct.
What are the problems associated with inorganic fertilizers?Many, such as anhydrous ammonia, urea, urea-ammonium nitrate solutions, triple superphosphate, ammonium phosphates, and potash muriate, can be administered directly (potassium chloride).
Compound fertilizers are chemical or physical blends of pure ingredients. As a result, excessive use of inorganic fertilizers has resulted in soil and air.
Water pollution due to nutrient leakage, soil physical features deterioration, toxic chemical buildup in water bodies, and so on, as well as serious environmental concerns and biodiversity loss.
Therefore inorganic fertilizers can cause toxic residue to appear in fruits and vegetables, hence option d is correct.
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A student does an experiment for a science fair to study whether temperature affects the timing of a cricket's chirps. The student keeps a cricket in an enclosed box that is heated to different temperatures each day for twelve days. The student records the cricket's chirps by using a sound-activated microphone so the timing of the chirps can be measured. Which is the dependent variable in this experiment? O size of the box O temperature of the box O timing of the cricket's chirps O volume of the cricket's chirps Save and Exit Next Submit Mark this and return
Answer:
the timing of the cricket's chirps
Explanation:
What are the symptoms and incubation period of an infection by the microbial agent?
Answer:
Explanation: A person with a bacterial infection will often experience redness, heat, swelling, fever, and pain at the site of infection, as well as swollen lymph glands. A rash can indicate a fungal infection of the skin. However, viruses and bacteria may also cause skin conditions and rashes. While the incubation period is 2-10 days, average 3-4 days or sometimes a week.
When you breathe out, carbon dioxide passes from the what
into the air.
Answer:
Lungs
Explanation:
This is when oxygen has been taken into the blood carbondioxide is then exchanged
Answer:
blood
When you _________, carbon dioxide and water pass from the blood out into the air.
Explanation:
Mrs. Rosales performed a demonstration of a chemical reaction for her science students. In a well-ventilated room, she added a sulfuric acid solution to a beaker containing granulated sugar. The mixture immediately became very hot and released water vapor into the air. The sugar appeared to burn and was transformed into a rapidly growing column of solid black material. The experiment also produced a foul-smelling odor. Which observation about the demonstration does not provide evidence of a chemical reaction? A. The mixture immediately became very hot B.Water vapor was released into the air. C.The mixture released a foul-smelling odor. D.The sugar was transformed into a solid black material
Answer:
D
Explanation:
The observation about the demonstration that does not provide evidence of a chemical reaction is the liberation of water vapor into the air. Thus, the correct option for this question is C.
What is a Chemical reaction?A chemical reaction may be defined as a process that significantly involves the rearrangement of the molecular or ionic structure of a substance, as distinct from an alteration in physical form or a nuclear reaction.
According to the context of this question, the appearance of the mixture that immediately became very hot, the transformation of sugar into a solid black material, and the liberation of a foul-smelling odor are easily estimated or observed during the course of the experiment. But the liberation of water vapor into the air is not visualized with unaided eyes.
Therefore, the observation about the demonstration that does not provide evidence of a chemical reaction is the liberation of water vapor into the air. Thus, the correct option for this question is C.
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True or false, all solids are hard
True or false, words used to describe solids are called properties
True or false, liquids take the shape of the container they are in
True or false, liquids are suck down by temperature to the bottom of the container
True or false, when you move a liquid to another container the volume changes
True or false, the temperature at which a solid turns into a liquid is the freezing point
True or false, surgical spirits and ice are solid at room temperature
True or false, the melting point of water is 0°C
True or false, a solid keeps its shape, well liquids have no fix shape or volume
True or false, a solid keeps its shape, well liquids have no fixed shape or volume
True or false, gases Will spread out to fill a container or just keep spreading around
True or false, gases have weight because they are affected by gravity
True or false, in a solid the particles are packed tightly together and vibrate quickly
True or false, as a solid heats up, particles move more quickly and take up more space
True or false, as a solid is heated up eventually eventually cannot keep it shape and becomes a gas
True or false, dissolving solids and liquids creates a solution
True or false, dissolving is when the solid particles disappear from sight
True or false, if it’s all it is dissolved, it can be retrieved by freezing liquid
True or false, when you combine a solid and a liquid dissolving always takes place
True or false, water boils it 100°C ( 212°F ) with bubbles of air
True or false, you need to give water heat (thermal) Energy to turn it into a gas
True or false, changing the amount of heat energy does not change how fast water changes states
True or false, the Gaseous state of water is called water vapor
True or false, lighting a match is a reversible change
True or false, changing boiling water to ice cubes can be reversed
True or false, cooking an egg is a nonreversible change
Answer:
for example when you have an ice it is soild
What do scientists use to measure the magnitude (strength) of earthquakes?
A.) seismograph
B.) people observations
D.) bathroom scales
Answer:
Option A
Explanation:
The answer is "seismograph" or option A. A seismograph is a tool that records duration and force of a Earthquake when it strikes. It works by responding to ground motions because it's very sensitive to vibrations. So when the device picks up a huge vibration is quickly records how long it lasts and how strong the vibration was.
Hope this helps.
what will be the consequence if humans continue to over-hunt elephants for their ivory
Answer:
Extinction
Explanation:
Answer:
extinction if they are hunted so much
What determines climate patterns?
Answer:
the answer is below
Explanation:
The two most important factors in the climate of an area are temperature and precipitation. The yearly average temperature of the area is obviously important, but the yearly range in temperature is also important. ... Some areas have about the same rainfall throughout the year.
4. The green area that shows the difference between the BR and DR in stages
2&3 is also know as
The cell wall gives the cells...
-Structure
-Energy
-Protein
-Photosynthesis
What organisms would be found in this biome?
A) vines, ferns, and sloths
B) sedge, arctic hares, and arctic foxes
C) cacti, lizards, and bats
D) cedars, pine trees, and warblers
Answer:
im thinking its C
Explanation:
Answer:
The answer is B, sedge, arctic hares, and arctic foxes
Explanation:
Describe the interaction between an enzyme and it’s substrate
Answer: The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur.
What statement best demonstrates that gene expression is regulated?
Answer:
Cells protect their DNA by enveloping it in a nucleus
Explanation:
Salivary amylase begins the process of carbohydrate digestion in the mouth. The activity of salivary amylase is halted in the stomach because:_______
The activity of salivary amylase is halted in the stomach because of its
acidic pH.
The salivary amylase reacts with starch in the mouth and starts the process
of breaking them down. When it gets to the stomach, the action stops after
some minutes as a result of a change in pH as enzyme performs optimally
when at a suitable pH or temperature.
The acidic pH of the stomach inactivates the salivary amylase and the
gastric amylase in the stomach continues with the process.
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In the picture how does the thermal energy definitely flow?
Answer:
from the bears to the snow
I did my test and I got 100%
What is the answer? Please
Answer:
1. nucleus
2. nucleolus
3. cell membrane
4. cytoplasm
Explanation:
James wants to know which brand of shoe will help him run faster. He thinks the more expensive shoe should be the one that helps him run faster. He tries three different types of running shoes. He runs one lap on the track with pair of shoes ( shoe A) and times how long it takes. He rests for 15 minutes. Then, he tries on another of shoes (shoe B) and runs a lap around the track, while timing how long it takes. He rests for 15 minutes before repeating the lap with the last brand of shoes (shoe C).
Which type of investigation did he complete ?
a.)experimental
b.)descriptive
c.)observational
Answer:
C.) Experimental
Explanation:
He conducts test to see which shoe helps him better, in so doing a experimental investigation
Energy-storing sugars are made during the __________ in photosynthesis.
Answer:
Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.
Explanation:
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Plants and other living things use photosynthesis to convert light energy into chemical energy, which is then released via cellular respiration to power the organism's activities.
How does sugar get its energy from photosynthesis?Plants use their leaves to capture light energy during photosynthesis. Water and carbon dioxide are converted by plants into a sugar called glucose using the power of the sun. Plants use glucose as a source of energy and to create other compounds like cellulose and starch.
Light, water, and carbon dioxide (CO2) are converted into energy and sugar inside the chloroplasts of leaves (glucose). Sunlight is transformed into energy-storing molecules in the plant cells using water. These molecules' energy is subsequently utilised to convert CO2 into glucose.
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