Water evaporating in an open system, water freezing, cookie dough baked into a cookie, and sugar dissolving into water are all examples of statements that demonstrate the law of conservation of matter.
What is law of conservation?A conservation law in physics asserts that a specific observable property of an isolated physical system doesn't change over time.A physical property, or measurable amount, does not change over time in an isolated physical system, according to the conservation law, often known as the law of conservation, which is a principle in physics.According to the principle of mass conservation, neither chemical processes nor physical changes can create or destroy mass in an isolated system. The mass of the products and reactants of a chemical reaction must be equal, in accordance with the law of conservation of mass.To learn more about law of conservation refer to:
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Explain the flow of energy in the food chain and why stored energy is an important concept of it.
Answer:
"The process of transfer of energy to various trophic level of food chain is known as flow of energy. Energy flow in ecosystem from energy source to autotrophs to heterotrophs."
Explanation:
The energy flow from the primary members, plants to the other level of organism in food chain. Storage of energy is very important because, the stored energy in plants are distributing to all other levels in food chain and utilizing for activities.
What is energy distribution in food chain ?The sun is the main source of energy for practically all ecosystems on earth. Energy moves from one trophic level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose.
Primary producers are then consumed by primary consumers, who are in turn eaten by secondary consumers, and so on. The sun is the main source of energy for practically all ecosystems on earth.
Energy moves from one trophic level, or level of the food chain, to the next as primary producers take energy from the sun to make their own food in the form of glucose. Only 10% of energy is distributed to the other level and 90% are lost to the surroundings.
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20 Points and Brainliest if you answer in 5 mins
Huan made a chart to study for an exam about radio waves.
under column X
Changes the frequency of a wave
is used by cell phones to transmit data
Under Column Y
changes the height of a wave
is used by television stations for pictures
Which headings best complete the chart?
A) X: Phase, Y: Pulse
B) X: Pulse, Y: Phase
C) X: AM, Y: FM
D) X: FM, Y: AM
In the electromagnetic spectrum, the headings which best describe the chart are X: FM, Y: AM.
What is electromagnetic spectrum?The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.
The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.
In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.
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A student uses a lever and fulcrum to lift a rock off the ground.
Which option describes when potential energy is converted into kinetic energy during this process?
a. when the lever is wedged beneath the rock but before it has been lifted
b. when the student presses down on one side of the lever to cause it to move
c. when the rock rests on the ground without the lever
d. when the rock rests above the ground
Answer:B
Explanation: I know this because kinetic energy is when something is moving and potential energy is when something is not moving and the energy is being stored so it has you are pushing on the other side moving the object it is transforming the potential energy also known as stored energy into movement also known as kinetic energy
In the presence of light, plants use carbon dioxide and water to produce sugar and oxygen during the process of transpiration.
True or False?
Which distinguishes a dwarf planet from a planet?
Answer:
It's size
Explanation:
The definition of a dwarf planet is "a celestial body that orbits the sun and has a spherical shape but is not large enough to disturb other objects from its orbit"
Essentially, "dwarf" is an adjective. Just like saying the colour distinguishes a purple planet...
Answer the following questions with a picture only PLEASEEEEE.
1. What is the main source of energy for ecosystems?
2. What are some natural things that can disturb ecosystems?
Answer:
1.Photosynthesis is the process of converting light into energy
2.Natural events, such as wind, drought, flood, fire, or disease.
Explanation:
1.Since photosynthesis converts light into C-H bonds in organic material, photosynthesis is the most common source of energy in most habitats, and therefore carbon flow and destiny are inextricably related to energy flow.
2.Natural disasters such as wind, drought, storm, burning, or disease may cause disruption. These "natural occurrences" are often linked to human activities. Air and water emissions, as well as climate change effects such as temperature, rainfall, and ocean chemistry, are also examples of human disruptions.
(hope this helps can i plz have brainlist :D hehe)
Which of these are vestigial structures?
A. the sharp spines of a cactus
B. the wings of a butterfly
C. the hip bones found in some spees of snake
D. the thick fur and layer of fat of some mammals in cold climates
Answer:
your answer is C
Explanation:
please help me with these science questions
Answer:
1. arches commonly form where inland cliffs, coastal cliffs, fins or stacks are from the sea, rivers or the weather. 2. yellowish brown loamy/foamy deposit found in North America, Europe, and Asia!
what is the function of tunnels and passageways in subsurface mining?
a. to reach mineral ore deep below the surface of the earth
b. to reach mineral ores on the surface of the earth
c. to drain underground lakes where minerals are found
d. to create strip mines and quarries below the surface of the earth
The function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.
What is subsurface mining?Subsurface mining is the process in which mineral ores are too deep to extract at with this mining techniques, subsurface mining methods are used .
An advantage and good thing of subsurface mining is that it will not disturb land than surface mining it only disturbs less than one-tenth the surface amount of land as surface mining and the method.
Therefore, the function of tunnels and passageways in subsurface mining to drain underground lakes where minerals are found. option C is correct.
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Imagine that all the plants in a particular area died. Which best predicts what would happen to the animals in that area? Choose the prediction that best matches your thinking. (write a paragraph explaining why you chose that answer.)
A. The animals that eat plants would all die. The animals that eat only animals would live.
B. Some of the plant-eating animals would die. Other would live by switching to eat other animals.
C. All of the animals would eventually run out of food and die.
D. All of the animals would survive by eating other foods.
Explain why you selected the prediction.
How would you label the molecules shown in the sample above? ( A is wrong )
a. Sample A is cooler. Sample B is hotter.
b. Sample A is hotter. Sample B is cooler.
c. Samples A and B are the same temperature.
Match the following items.
1.
uses a lens to gather and focus light
refracting telescope
2. separates starlight into wavelengths
radio telescopes
3. pick up faint-lighted stars
spectrograph
4. see binary stars
giant refractors
5. see behind nebulae dust
giant reflectors
Answer:
1-uses a lens to gather and focus light- giant reflectors
2-separates starlight into wavelengths- spectrograph
3-pick up faint-lighted stars- radio telescope
4-see binary stars- refracting telescope
5-see behind nebulae dust- giant refractors
Explanation:
is it correct?
A scientist is investigating which type of medicine would dissolve faster, a solid pill or a scoop of powder. Which hypothesis should the scientist develop given prior knowledge about surface area?
A.
Powders have more surface area and will dissolve faster.
B.
Solid pills have less surface area and will not dissolve.
C.
Solid pills have more surface area and will take longer to dissolve.
D.
Powders have less surface area and will dissolve faster.
Answer:
A.
Powders have more surface area and will dissolve faster.
Explanation:
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The solute-like solids can dissolve in the solvent through the dissolution process. Powders have more surface area that permits more dissolution.
What is surface area?The surface area is the amount of space covered or occupied by an object. It is directly dependent on the solubility and increases with an increase in the solubility.
The surface area of the powder is more compared to the solid pill and hence, the solubility of the scoop of powder is more than the pill.
Therefore, powder dissolves faster because option A. has more surface area.
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QUESTION 4 5
4. What would most likely be the result of an invasive species entering an ecosystem?
5. Why are humans responsible for many invasive species?
#4: An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts
#5: It is not surprising that human population density is a leading cause of species invasions. Species are easily moved by human and animal (particularly domestic animal) vectors, and increasing populations residing next to protected areas simply means increasing the odds of species introduction
HOPE THIS HELPS
QUESTION 3. What describes the relationship between a food chain and a food web?
Answer: A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels. Trophic levels include different categories of organisms such as producers, consumers, and decomposers.
HERE IS THE ANSWER NOT THE LINK
HOPE THIS HELPS
image------------------------------------------------------------------------------------------------------------------v
v--------------------------------------------------------------------------------------------------------------------------v
--------------im just trying to fill space for the minimum 20 char
The answer is probably tt
Well for parent 1 and parent 2 ( 1st parent of 2 ), parent 1 shows T so it forms Tt
Parent 1 and 2 ( 2nd parent of 2 ) ( parent 1 also has T and parent 2 has t ) so it forms Tt
Parent 1 ( 2nd parent of 1 ) and parent 2 has t and parent 1 is normal which forms tt
So that leaves 2nd parent 1 and parent 2
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....
all I need you to do its to type out these pictures word for word it pretty simple
Answer:
- The amount of space affects a population's size.
- Available water, food, sunlight and temperature are limiting factors
- Space is also a limiting factor.
- If there are too few resources, populations may migrate to new areas.
Limiting
Factors
- Environmental factors, such as the amount of water, food, sunlight and temperature available, are limiting factors for a population.
- A limiting factor is something that restricts the size of a population. Limiting factors might affect the number of individuals in the ecosystem can support.
Resources affect
populations
Living and nonliving things are both found within the same ecosystem. the living things require the non living things for survival.
(Please take note I fixed some of the incorrect grammar in these images. Such as 2 spaces in-between, or this -> "Number of individuals ithe ecosystem")
~ LadyBrain
In a few sentences, describe what this weather map tells you about the weather.
Answer:
You can download the answer here
Explanation:
Jennifer observes a weather map showing tomorrow's weather. She predicts that air will travel from the low pressure system to the high pressure system, causing wind. The wind will carry moisture since it is coming from the ocean. Choose the statement which corrects the error(s) in Jennifer's prediction.
a weather map of Florida with an L to the left of Florida over the ocean and an H over the land
a The wind from the ocean will not carry moisture.
b The wind will travel from the high pressure system to the low pressure system.
c Since the low pressure system is not over land, wind will not be created.
d Wind is only created when two high pressure systems meet.
Answer:
b The wind will travel from the high pressure system to the low pressure system.
Explanation:
I think this is the answer not sure.
Answer:
B
Explanation:
I did the same Exam as you and got the answer right when I chose B
Hope this helps you!
P.s have an amazing day! <3
^﹏^ Please help!
Write a paragraph on why our food has to be digested.
Paragraph has to have full explanation and complete sentences.
Thank you for your time! ^﹏^
Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these best explains these observations?
A. Organisms traveled between these continents on land bridges.
B. The same forces erode mountains in different locations.
C. These continents were joined together at one time in the past.
D. Some rock types are very common and are found everywhere.
Answer:
These continents were joined together at one time in the past.
Explanation:
Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these BEST explains these observations?
Write a paragraph on why food needs to be digested. :)
Please hurry I need it.
Answer: You die if no digest
Explanation:
Food needs to be digested because your body can't contain large stuff whole, so it has to be converted into a smaller amount. For Instance, if you were to eat a entire turkey then your body would just explode I guess if you wouldn't digest it. Also, without digesting food you can't enter new food into your body. Therefore, this is why food needs to be digested.
what are 5 things that go through photosynthesis? I have: plants, algae, some microorganisms and cyanobacteria
Explanation:
This process is called photosynthesis and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis.
HELP IMPORTANT TEST!! Why must animals eat food but plants do not eat food? A: Plants do not appear to eat, but they do actually eat nutrients in the soil. Animals must eat to obtain food that they can't get from the soil. B:Plants make their own food through photosynthesis. Animals must eat because they cannot make their own food. C: Plants use photosynthesis to make their own food instead of eating. Animals eat plants because they like the taste of certain fruits. B: Plants make their own food through photosynthesis, so they do not eat. Animals eat because the energy they make themselves is enough to live but not grow. By eating, they can grow big and strong.
Answer:B
Explanation:The answer is B because plants use photosynthesis to make their own food while animals such as humans do not make their own food using the sun photosynthesis is using the suns Energy to produce your own food If you think about it humans are animals and do you use the suns energy to produce your own food no
Which best explains how a single-celled organism can survive without other cells?
Answer:
They are able to perform all necessary functions within one cell.
Explanation:
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
all I need you to do its to type out these pictures word for word it pretty simple
Answer:
Threatened Species: A threatened species is a species at risk but not yet endangered. California sea otters were classififed as a threatened species. Laws were passed to protect the otters and now they have increased their population size.
Invasive Species: One of the main causes of extinction and endangered species is the introduction of an exotic species. New exotic species are called invasive species. Invasive species can disrupt food chains, carry disease, prey on native species directly, and out-compete native species for limited resources, like food.
Extinction: If a population decreases too much in numbers, they disappear. Extinct species mean that the species has died out and no individuals left. An example of extinction: New Zealand was once home to a bird called the Giant Moa. Humans settled as their population increased the Moa population decreased. The species is now extinct.
Explanation:
Consider the two models seen here. These models represent two different minerals. Each is composed of a lattice of carbon atoms. How do these crystals differ?
A) The two have different chemical formulas. Eliminate
B) The diamond model represents a crystal while the graphite represents a molecule.
C) Both are crystals, but the organized arrangement of the carbon atoms in each differs.
D) The graphite crystal is not pure: that is, it contains two elements while the diamond crystal is composed of carbon atoms only.
Answer:
hi mama rusty thank you for your correct email address for the title company hunk you a picture of the following statements about you and I will be there at work and
Explanation:
l hope I can help you
Please help me with these science questions
Answer: The wind erodes the earth by moving pieces of it every which way.
Explanation:
Every patch of air carries hundreds of thousands pieces of dirt sand and chunks of earth. When the wind changes course it will slowly pick up more and more and until an indent will form. This is also how sand dunes are made.
Answer:
If the wind constantly pushes a rock, eventually the sides will start eroding, and the wind will cause it to break and erode.
The blowing wind constantly changes the earths surface by moving rocks, and breaking them.
by the wind constantly pushing sand on top of each other in one place.
Explanation:
The local newspaper has published the passage below.
Last week, scientists released incredible images of aurora australis, known as the northern lights, as seen from the Hubble telescope. The Hubble telescope was placed in orbit in 1990 by the space shuttle and has since delivered the sharpest images we have of our planet, our galaxy, and the universe. The images delivered last week show the beautiful display of lights in the southern hemisphere. These lights are the result of the solar activity known as solar wind. Traces of solar wind reach well beyond Earth and have been detected as far as Saturn.
Which statement in the news passage above is inaccurate?
The aurora australis cannot be seen from space.
The Hubble telescope does not orbit our planet.
The aurora australis is known as the northern lights.
Solar winds do not reach well beyond our planet.
Answer:
Solar winds do not reach well beyond our planet
Explanation:
I hope this helps :)
Solar winds do not reach well beyond our planet.because Traces of solar wind reach well beyond Earth and have been detected as far as Saturn. says that
Use the following diagram to answer the question.
What part of the respiratory system is labeled 4?
1 lung
2 diaphragm
3 nasal cavity
4 trachea