What kinds of changes happen to water as it goes through the water cycle? Are they physical or chemical?
Answer:
When water changes state in the water cycle, the total number of water particles remains the same. The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition. All changes of state involve the transfer of energy.
Explanation:
and its physical
Answer:
The answer is Physical
Explanation:
The changes of state include melting, sublimation, evaporation, freezing, condensation, and deposition. All changes of state involve the transfer of energy. They are all the same but no matter what state it's in it's still water so it's physical.
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Deforestation is the __________.
A.
cutting down or burning of all the trees in a forested area
B.
replanting of trees in an area where trees were cut down
C.
managing of forests for the benefit of people
D.
adding of nutrients to topsoil in order to make land more arable
Please select the best answer from the choices provided
A
B
C
D
Don't have to answer!
1. The ocean is also known as Earth's _____. *
A. evaported cloud
B. Giant Collector
C. Condensed Liquid
D. None o the above
Answer:
Earth is often called the ocean planet because it is 70% covered in water.
Explanation:
D.
2. A change in velocity (speed and/or direction) is... *
A.speed
B.Velocity
C. Acceleration
Which of the water alternative energy source has an energy transfer chain of GPE-->KE-->EE?
What kind of change, physical or chemical, is happening when wood burns? How can you tell?
Answer:
Wood changes chemically to carbon dioxide when it burns and leaves a residue of ashes. These ashes cannot be changed back to wood. So it is a chemical change.
PLEASEE HELP ASAP WILL MARK BRAINLIEST
This is on Asexual reproduction and I don't understand this at all so pleasee help
Answer:A,A,b,b
Explanation:i think i am learning this right now too!
A period of inactivity in a plant, where it does not grow to survive unfavorable environmental condidtions
Answer:
Dormancy
Explanation:
The edges of South America and Africa seem to fit together like a puzzle.
A.true
B.false
Answer: true
Explanation:
Answer:
It's true...
Explanation:
which one should I go in ??????
Answer:
the hatchery I think
Explanation:
because i think
Which formation is one feature of karst topography?
caves
kettles
meanders
oxbow lakes
Answer:
caves, Karst describes a distinctive topography that indicates dissolution. Karst terrains are characterized by the presence of caves, sinkholes, sinking streams, and springs. Understanding caves and karst is important because as much as a quarter of the world's population depends upon freshwater supplied from karst areas.
Explanation:
hope this helps have a good rest of your night :) ❤
The formation that serves as one feature of karst topography is Caves.
Karst topography can be regarded as a landscape with features of cave and sinkhole.
It is usually found in regions that consists plentiful rainfall in which the bedrock have some carbonate-rich rock.
Other characteristics of Karst topography are:
fissures underground streams. SinkholeTherefore, option A is correct because cave serves as as a formation of feature of karst topography
Learn more about karst topography at:
https://brainly.com/question/2794887
What is the influence of temperature on a chemical change?
Answer:
Increasing the temperature will cause chemical changes to occur faster. Decreasing the temperature, causes the particles to lose energy which causes them to move around less and slower. The less they move, the less collisions occur, and the less reactions occur between the chemicals = slower reaction rate.
Explanation:
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___________________ can be renewable or nonrenewable.
isn't it fossil fuels? i'm not sure
Answer:
wood, aluminum, gemstones, fabric, paper, rock and many others can be renewable or nonrenewable.
Hope i get brainliest
Explanation:
True or False: Thermal energy can not transfer when particles of matter are in direct contact with each other, as they are not in solids, liquids,or gases.
Answer:false
Explanation:
Fossils of tropical plants have been found in extremely cold regions.
A.true
B.false
Describe how fossil fuels are converted into usable energy
:)
Answer:
Fossil fuel power plants burn coal or oil to create heat which is in turn used to generate steam to drive turbines which generate electricity.
Explanation:
Fossil fuels are used in power plants to make steam. Steam drives turbines which coupled to generator produce electrical energy. Electrical power is used in all industries, domestic used where energy is needed.
petroleum products like oil, gas are used in motor vehicles, ships, airplanes. They burn and give the power for transport.
Fossil fuels are burned under different conditions in engines, boilers, etc which produce heat energy and then converted into mechanical energy.
gas and oil are used to heat homes.
Answer: HEY HAVE A GREAT DAY
fossil fuels are converted into usable energy by first collecting, and then I'm pretty sure its turned into gas and turns turbines.
Explanation:
Fossil fuel are energy buried within the earth that could used as energy source for consumption. Most sources of earth's energy comes from fossil fuels
I DId this in class and asked on brianly
PLS MARK ME BRAINLIEST
please help!!!!!!!!!!!!!!!!!!!
Answer:
Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar. Breaking down sugar produces the energy your body needs.
Explanation:
Brainly pls
When balancing a chemical equation, which of the following are you allowed to do?
Take away substances
Add coefficients
Change subscripts
Add new substances
Answer:
Add Coefficients
Explanation:
You CAN'T change the identity of an element or substance in an equation. You can only change coefficients.
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Answer: Do you take Ms. Reyes
Explanation: The answer is Outside air, Nose, Lungs, Bloodstream, Cell
Answer:
outside air
nose
lungs
bloodstream
cell
Select all of the compounds.
Group of answer choices
water (H2O)
gold (Au)
nitric acid (HNO3)
cobalt (Co)
oxygen (O2)
Would the following atoms have similar reactivity?
A) Elements in Group 2 have 2 energy levels.
B) Elements in Period 7 have 7 valence electrons.
C) Elements in Group 13 have 13 valence electrons.
D) Elements in Group 13 have 13 valence electrons.
The diagram represents liquid water in a pan on a hot plate. The liquid water is boiling and changing into water vapor. The process of boiling water is considered to be a
Answer:
I guess c?
Explanation:
take my answer by a grain of salt but the process of boiling water leads to physical change because eventually all water will become water vapor if boiled long enough
Please help I will give brainlist
How would you write the formula for sugar-water solution if the formula for salt-water solution is written as NaCl(aq).
The formula for solid salt is NaCl(s).
The formula for solid sugar is C6H12O6(s).
Answer:
Explanation:
The chemical or molecular formula for sucrose is C12H22O11.
How is science based on observation used as evidence? How can evidence be used?
Answer:
Explanation:
Researchers gather empirical evidence through experimentation or observation. Empirical evidence is information acquired by observation or experimentation. Scientists record and analyze this data. The process is a central part of the scientific method.
Answer:
Science Produces Explanations That Can Be Tested Using Empirical Evidence. Science requires that scientific explanations of phenomena be based on events or mechanisms that can be observed in the natural world. This is how science builds a base of shared observations and ideas to which new knowledge can be added.
Explanation:
A chemist is using 341 milliliters of a solution of acid and water. If 16.1% of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.
We need to assume that the acid in question is a liquid (not a solid or a gas),
and we need to assume that the 16.1% is specified as 16.1% (v/v) ,
where "v/v" means volume in volume,
meaning 16.2 milliliters of that acid are contained in 100 milliliters of the solution of acid and water.
With those assumptions, the ratio of acid volume to solution volume is
x/342 = 16.1/100 , where x= number of milliliters of acid in the 342
milliliters of solution.
x/342 = 16./100 ---> x=342x16.1/100 ---> x=55 (Rounded)
European and North America coal fields line up.
A.true
B.false
Answer:
The Answer Is A
Explanation:
Which three temperature readings all mean the same thing?
273 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit
100 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit
273 Kelvin, 0 degrees Celsius, 212 degrees Fahrenheit
373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit
Someone please help!
Answer:
273 Kelvin, 0 degrees Celsius, 32 degrees Fahrenheit
Explanation:
Acceleration due to gravity =
100 m/s2
9.8 m/s2
62.3 m/s2
1.2 m/s2
Answer:
9.8
Explanation:
no explanation bbbbnnnnnnnnnnnnnnnnnnn
plz help .....................
Answer:
1. conduction
2. radiation
3.convection
4. conduction?
5. radiation
6. convection
7. convection
8. convection
9. radiation
10.radiation
(sorry if they aren't all correct)
Plz HELP ITS SCIENCE!