Answer:
hello
Explanation:
Electromagnetic waves are waves that can travel through matter or through empty space. ... However, when light travels in matter, it interacts with the atoms and molecules in the material and slows down. As a result, light travels fastest in empty space, and travels slowest in solids.
that's the summary
Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effects indicates that a chemical reaction has taken place between two substances?
A pink powdered substance turns water pink when they are mixed together.
A piece of shiny metal begins to bubble when placed in a clear liquid.
A white solid disappears when mixed with water.
A clear, lemon-scented liquid continues to smell like lemon when it is mixed with water.
Answer:
number 2
Explanation:
2C4H10 + 13O2 --> 8CO2 + 10H2O
Which is true about the reaction shown above?
The reaction has two elements that combine to form a compound.
The reaction releases energy.
The reaction is a single replacement.
The reaction has negative ions in two of the compounds that switch places.
PLEASE HELP! I'LL GIVE YOU THE BRAINLEST!
The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided below. In comparison to the Sun, Betelgeuse is a -
Question 1 options:
Super Giants
Giants
MainSequence Stars
White Dwarfs
Answer:
supergiants
Explanation:
The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided in the image. In comparison to the Sun, Betelgeuse is a Super Giants.
What are super giants?Supergiants are among the very big and very luminous stars. Supergiant stars are present at the top region of the Hertzsprung–Russell diagram with absolute visual magnitudes between about −3 and −8. The temperature range of supergiant stars have range between 3,400 K to over 20,000 K.
Some examples of super giants are-
The brightest star in the constellation Orion have blue-white supergiant, it is Rigel. Deneb is the brightest star in Cygnus. It is also a white supergiant. Delta Cephei is the famous star Cepheid variable is also a yellow supergiant and Betelgeuse, Antares and UY Scuti are red supergiants.
Therefore, The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided in the image. In comparison to the Sun, Betelgeuse is a Super Giants.
Learn more about Super Giants, here:
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What is the relationship between "freezing point" and "melting point"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~
Answer:
The freezing point of a substance is the same as that substance's melting point. At this particular temperature, the substance can exist as either a solid or a liquid. At temperatures below the freezing/ melting point, the substance is a solid.
Explanation:
edge 2021
Answer: The relationship between freezing point and melting point is that freezing point is at the temperature of when a liquid freezes and melting point is at the temperature when a solid melts which are both at the same temperature
Some quotes from the text to support this is that: "Freezing point is the temperature at which a liquid freezes and melting point is the temperature at which a solid melts.
no link need right answer for usatestprep
Why was it important to establish the Clean Air Act?
to reduce the need to study the effects of dirty air on human health
to determine ways to reduce the number of premature deaths per year
to create a regulation that makes any activities that pollute the air illegal
to make sure that no government activities polluted the local atmosphere
Answer:
It was important to establish the clean air act to create a regulation that makes any activities pollute the air illegal
Explanation:
Answer:
C. to create a regulation that makes any activities that pollute the air illegal
explain one or two things that adversely (negatively) affect the Earth's environment. How do you know that these things you're discussing are bad for the world around us?
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Answer:
Hello! The main thing I will be talking about today is two things that negatively affect the Earth's environment. Humans have impacted the physical environment is many ways, two being, overpopulation. Overpopulation is becoming a problem in this world. Accidental births are the main reason. Overpopulation can cause economic problems, over-farming, deforestation, and even water polluting. Second thing is, burning toxic fumes, and creating pollution. Pollution is a very, very bad thing. It can cause the atmosphere to fill up with fumes which aren't good for plants, humans, or animals. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. There are four main types of air pollution sources: mobile sources, such as cars, buses, planes, trucks, and trains. stationary sources, such as power plants, oil refineries, industrial facilities, and factories. area sources, such as agricultural areas, cities, and wood burning fireplaces. I know the things I'm discussing are bad because, slowly the Earth is taking impact because of us. We need to make a better change and help our Earth.
Is Salt Water, Beach Sand, Air, Bronze, and Vinegar A
A.Compound
B.Mixtures
C.Solutions
D.Elements
Answer:
B mixtures
Explanation:
You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the story of how it got there in the first place and what happened to it next, if no human picks it up and it remains in the environment.
Follow your atom through at least one plant, one animal, and one decomposer.
There are possibly multiple paths your atom can take, but you only need to choose one for your story.
Explain how your atom gets from one point to the next.
You can use evidence from your notebook to help you tell your story.
You can use words and pictures to tell your story.
and dont just put a random answer
Answer:
I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.
Explanation:
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What are the similarities between "melting" and "evaporation"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~
Answer:
Melting and evaporation both represent changes in matter that involve behavior at the molecular level. We can see melting when ice becomes warm and changes to liquid, and we see evaporation when a puddle on the ground eventually disappears.
Explanation:
hope this helps :)
what type of fault caused the Tohoku earthquake? I need some help ASAP!
Answer:
The red star denotes the mainshock epicenter of the 2011 Tohoku-oki earthquake (Mw 9.0). The jagged black line denotes the Japan trench. The mechanism of great megathrust earthquakes is influenced by the frictional properties, structure and composition of the plate boundary fault10.
Explanation:
Answer: The red star denotes the mainshock epicenter of the 2011 Tohoku-oki earthquake.The jagged black line denotes the Japan trench.
Explanation:
Can someone help me?
My teacher is making me write a paragraph about photosynthesis.
(Has to be grade 5-6 writing )
Which of the following is an example of the characteristic of movement?
1 The kitten shivers like she’s cold.
2 The moss on the rock is active even though it looks still.
3 Animal kidneys produce urine.
4 Nutrients provide living organisms with energy to manage other life processes.
PLZZZ DO NOT PUT LINK TO ANSWER
All of these are characteristics of compact bone EXCEPT:
containing bone marrow.
hard and rigid.
provides support for the skeletal system.
blood vessels and nerves pass through it.
Answer:
Explanation:
Bone, or osseous tissue, is a connective tissue that constitutes the endoskeleton. It contains specialized cells and a matrix of mineral salts and collagen fibers.
The mineral salts primarily include hydroxyapatite, a mineral formed from calcium phosphate. Calcification is the process of deposition of mineral salts on the collagen fiber matrix that crystallizes and hardens the tissue. The process of calcification only occurs in the presence of collagen fibers.
The bones of the human skeleton are classified by their shape: long bones, short bones, flat bones, sutural bones, sesamoid bones, and irregular bones (Figure 19.16).
All of these are characteristics of compact bone except 'containing bone marrow'.
The characteristics of a compact boneThe compact bone is one of the types of bone found in the human skeletal system that is made up of organic ground substance and inorganic salts.
It is the main structure in the body for support, protection, and movement due to its strong nature.
Bone cells in compact bone are reached by blood vessels and nerves that run through the central and perforating canals.
Bone marrow is a semi-solid tissue found within the spongy bone ,but not compact bones, and has many blood vessels.
Therefore, compact bone does not contain bone marrow.
Learn more about bone here:
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Amniotic egg is an egg that contains a f fluid-filled nucleus and a yolk sac
True or False
PLS HELP THIS IS FROM A UNIT TEST
science 30 points pls help
Most minerals are _______ at room temperature.
solid
gas
liquid
Answer:
solid
Explanation:
Answer:
solid
Explanation:
What is Waves? Please help will give brainliest
Answer:
Waves involve the transport of energy without the transport of matter. In conclusion, a wave can be described as a disturbance that travels through a medium, transporting energy from one location (its source) to another location without transporting matter.
Explanation:
hope this helps, I tried to give an easy definition :)
Draw a line graph showing the population of beetles and healthy trees in the forest for five years. Round the numbers to the nearest whole number.
how do i draw a line ghraph on a computer
Answer:
Sample answer is the first one and my answer is the second
Their both the same just different ways
Any one can you help me with this from 8 to 10 all plz HURRY TO ME
Answer:
its not clear i would help u but i can't see it correctly
Explanation:
Helppp!!!
Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?
A) Vacuole
B) Nucleus
C) Chloroplast
D) Cell Membrane
Answer:
c
Explanation:
Answer:
C
Explanation:
Chloroplast helps plants capture energy from sunlight, so it is C.
When a plant bends to get more sunlight, which of these characteristics of life is it. A demonstrating?
B respiration
C reproduction
D sensitivity
E excretion
Which position shows spring in the Northern hemisphere?
Which of the following statements is true?
According to the Law of Inertia, the Earth will stay in motion because it is already moving.
The sun's gravitational pull keeps the Earth from moving in a straight line.
The speed of the Earth's motion keeps it from crashing into the sun.
All of the above.
Science-fix the errors in the passage.
Answer:
A
Explanation:
Students in an art class are assigned to make a miniature animal sculpture using materials of their own choice. Students who choose copper and aluminum as the materials for their sculpture will have no difficulty bending the materials into different shapes and angles. However, students who choose wood as sculpting materials will find that the food must be cut, glued, and sanded to form different shapes because it is lacking in -
A. Conductivity
B. Luster
C. Malleability
D. Ductility
C. Malleability
can i get brainiest?
no link need right answer
Answer:
cutting down the rainforest destroys the habitat for a number of species
Explanation:
please mark this answer as brainlest
What phenomenon is most responsible for ocean layers?
evaporation
condensation
precipitations
density
Answer:
precipitations
Explanation:
bcoz of water
I'm not sure what the answer is but i think it's F please tell me kf i'm right or not.
Answer:
I think it might be 'F'
Explanation:
Because lobsters do eat snails so try 'f'
I'm not sure if I choose the right subject but can someone help me
Answer:
Blank 1: plasticity
Blank 2: outer core
Blank 3: mantle
Blank 4: crust
P.S. This is Geology.
The author of Space Systems: All About Eclipses makes the point that seeing a total solar eclipse is rare. How does the author use evidence to support this point?
A. The author describes how often, on average, a solar eclipse happens in the same spot on earth]
B. The author shows what happens during a lunar eclipse.
C. The author provides a visual that shows how often total solar eclipses happen
D. The author states that lunar eclipses happen at night.
Answer:
C is the correct answer I think