Which of the following is not true about sound waves.
A. Sound waves travel through medium.
B. Sound waves are invisible.
C. Sound waves can move through water.
D. Sound waves can move through a vacuum.

Answers

Answer 1

Answer:

D. Sound waves can move through a vacuum.

Explanation:

Answer 2

Sound waves can move through a vacuum is an incorrect statement.  

• Sound is a kind of energy produced by vibrations. These vibrations generate sound waves that move via the mediums like water, air, and wood.  

• The sound waves are not visible as it is a form of energy, sound waves generate movement in the object, which continues till the particles run out of energy.  

• A sound wave mediates its energy through particle interaction, and a sound wave cannot travel via a vacuum, this shows that sound is a mechanical wave.  

Thus, sound waves cannot move through a vacuum. Option A is not true.

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Related Questions

Evaluate if knowing the type of the source of pollution helps make clean-up easier. Justify your opinion in 4-6 sentences and using at least 3 direct quotes from the article.

Answers

The easiest way to get rid of pollution and clean it up is by having everyone recycle cleaning up all the trash that is on the highways and stuff simply start using recyclable objects

Knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

What is the significance of knowing the types of pollution?

Knowing the source of pollution can make clean-up easier because it allows for targeted and effective removal of the pollutants as it identifies the specific source of the pollution rather than trying to address pollution throughout a wider area. It also helps in determining the most appropriate remediation technique to use, the cost of clean-up, etc.

Hence, knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

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What is a triglyceride? (Site 2)

Answers

Answer:

in explanation

Explanation:

an ester formed from glycerol and three fatty acid groups. Triglycerides are the main constituents of natural fats and oils, and high concentrations in the blood indicate an elevated risk of stroke.

Answer:

It is a type of fat found in your blood ;)

Explanation:

I need structural and behavioral adaptations, can someone explain how I find some or give me examples?

Answers

Answer:

The animals find or create a family after the animals find family they find shelter and hunt for food. After the parents have babies they teach the young ones how to survive out in the wild in about 2 weeks after they are born.

I really hope this helps you

And if you don't mind can you mark me brainliest?

Examples of behavioral adaptations are hibernation and migration. Examples of structural adaptations might be photosynthesis

Which of the following lists the reactants (raw materials) needed for photosynthesis to occur? *
1 point
Carbon dioxide + water
Sunlight + glucose
Water + oxygen
Glucose + oxygen

Answers

Answer:

carbon dioxide and water

Explanation:

carbon dioxide and water are the raw materials needed to start the reaction. They are on the left side of the equation so that is how you know.  

Carbon dioxide + water

What is the corresponding RNA sequence for the DNA strand above?

Answers

its the letter c hope u have an amazing day

I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP

Answers

Answer:

Explanation:

Genotypes are the genetic makeup of an organism. Such as the alleles it possesses.

Phenotype is the physical or biochemical traits of an organism. In short their appearance.

I hope this helped!

Answer:

The sum of an organism's observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism's parents, the phenotype is not

Explanation:

hope that's what u were looking for

What process completed division in a animal cell?

Answers

Answer: cytokinesis

Explanation:

In animal cells, cytokinesis is achieved when a contractile ring of the cell microtubules form a cleavage furrow that divides the cell membrane into half.

In the diagram below, which of the following represents the products that should be shown in arrow "A"? *
1 point
Captionless Image
Oxygen + water
Glucose + oxygen
Carbon dioxide + water
Carbon dioxide + glucose

Answers

Explanation:

ydhkhfbnfbcufzncziiguv

Answer:

i am unsure the question here.

Explanation:

You decide to make strawberry banana popsicles. What change in state will need to occur

Answers

Answer:

solid to liquid to ice i think

Explanation:

The hairs on Xander’s arms just started lying flat against his skin. Which is most likely his internal body temperature? 35°C 36°C 37.5°C 38.5°C

Answers

The answer is 38.5 because the temperature of the body is 37.5 so since he’s sweating the temperature would be increasing.

Active transport is when molecules move against the concentration gradient
True or False

Answers

Answer:

this is true (:

Explanation:

Answer:

true

Explanation:

The transport of specific particles down their concentration gradient through a membrane by carrier proteins is known as facilitated diffusion. ... Facilitated diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentration gradient.

The self-regulation of the internal environment of organisms or cells is called _____________.

Answers

Answer:

Homeostasis

Explanation:

O∵ 3 ∵O

Homeostasis hope that helped you out

.a i What does a food chain mean to you?
a. ii what is the difference between a prey and a predator?

b. i. Draw a food chain with 5 preys and 5 predators
ii. State what the producer, primary consumer, secondary consumer and the tertiary consumers are in any food chain.


2. State three reasons why people cut down trees and suggest three ways cutting down trees can be reduced.


3. What are the causes of air pollution.

4. What is acid rain?
b. What causes acid rain?
c. what forms does acid rain come?
c. State three effects of acid rain
d. State three ways we can solve acid rain problems.


5. What different ways can we reuse plastic containers
b. What is recycling?
c.How do we encourage people to recycle

Answers

Answer:

a.ii. A predetor is an animal that hunts or kills for food

A prey is the animal that the predetor hunts or kills for food

Explanation:

For example a rabbit is a prey because a fox (predetor) can hunt or kill it.

Answer:

a. You do this on your own

b. a prey is something that is hunted, a predator is a hunter.

b.i. not going to draw it but, here are some animals, cow, rooster, deer, rabbit, mouse, predators are cat, wolf, coyote, bobcat, leopard?

ii. Producers are always plants, primary consumers are grazers such as cows, secondary consumers are wolves, and tertiary consumers are snakes.

2.

a. For shelter

b. for paper

c. human in habitation/ construction

a.1Make shelters out of brick, or stones.

b.1 Make paper out of a mix of things, instead of mostly paper.

c.1 Make buildings taller, not longer, to preserve space, or, destroy old buildings and reuse the material!

3.

a. Acid rain is rain that is acid. Contains high levels of nitric and sulfuric acids.

b. Acid rain is caused by a chemical reaction which occurs when compounds like sulfur dioxide, and nitrogen oxides are released into the air!

c. Can appear in snow, fog, and tiny bits of material

Hope this helps!

pls help due soon: The graph below displays barometric pressure data collected over a 7-day period. When did a low pressure system move through the area?

Answers

between day 4 and 5 I think! because if you look at the graph between 4 and 5 is when it is a its lowest point

Answer:

I think its A

Explanation:

I think that because its when the graph gets the lowest

Which statement below best describes the connection between photosynthesis and respiration? *
1 point
Both have the same products.
Both have the same reactants.
Both require energy from the sun.
The products of one are the reactants of the other.

Answers

Answer. D. The products of one of the reactance of the other.
Explanation. The products of respiration include: glucose, oxygen and carbon dioxide. On the other hand, the reactants of photosynthesis also include: glucose, oxygen and carbon dioxide. Hope this helps, let me know if it’s correct so others can use it:)
Good luck.

QUICKKKK ILL MARK BRANLIEST!!!!​

Answers

The answer is B I believe
B
I think ..............

A student noticed that a potato left on the counter had begun to sprout. She decided to cut the potato into chunks and plant them. What is true about the plants that grew from this method? (Pick two)
All the plants are genetically unique.
All the plants have identical genetic information.
The original potato regenerated into several plants.
The new potato plants are the product of asexual reproduction.
The new potato plants are the product of sexual reproduction.

Answers

B and C are the ones I’d choose

ILL MA K BRANLIEST!!​

Answers

Answer:

Fungi

Explanation:

I just worked on this

Answer:

Fungi

Explanation:

What is the element name for 3.3%

Answers

Answer:

Nitrogen

Explanation:

Look at the PDFs and then answer the question -3-

I"M GIVING BRANINLLEST TO THE BEST ANSWER UwU

Answers

Answer:

The cell will shrink and the water will go out of the cell

the cell will get smaller

Describe the coral reef. Pls answer asap thxs...

Answers

Answer:

A coral reef is a structure in shallow ocean areas that is formed mainly by stonelike coral skeletons.

What is the effect is a beam of light hits a green leaf?

Answers

You look straight at a bright, shiny object when a beam of light bounces off of it. What is the effect? All of the color beams except green are absorbed by the leaf.

Credits to johnharleyjackson

When light strikes a green leaf, most of the green spectrum is reflected and most of the other colors are absorbed.

what is light?

We can see light as a sort of energy. The sun provides some illumination. The other light is artificial. Man-made light is created by converting another type of energy, such as electricity, into light energy. From a source, light travels in a wavy beam to whatever it encounters. Each hue is represented by a tiny wavy beam on the beam. A light beam travelling through the air that contains all of the hues appears to be clear.

What is reflection?

When a light beam strikes an object, such as tree leaves or an apple, the color of the object influences the smaller color beams inside the light beam. All color rays except green are absorbed by the green leaves. Only the green beam is reflected back, thus the leaves appear green to our eyes. Except for red, the apple absorbs all color beams. Only the red beam is reflected back, thus the apple appears red to human eyes. This is referred to as reflection.

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ILL MARK BRANLIEST!!!​

Answers

B mushroom only because its a fungi the other organisms are not

Does photosynthesis only occur during day time? Please explain if you answer my question!

Answers

Answer:

Photosynthesis happens during the day it needs the light.. Plants respire day and night.

Explanation:

photosynthesis only occurs during the day when there is sunlight.

yes, yes it does

it can only occur during daytime because thats when the sun is out giving plants the sunlight they need

Hello everyone, can someone help me out? I am being a dummy again

Answers

Answer:

D

Explanation: We can not see every star with our necked eye. But we come close with the Hubble space telescope. So D is correct.

Your answer is D hope this helps!

1.) The scientific name always consists of two words:

Group of answer choices

Genus and species

Family and species

Species and kindom

Domain and species

2.) Puma concolor is the scientific name for an American Mountain Lion, what is the species?



Group of answer choices

Puma

concolor

mountain lion

American mountain Lion

Answers

Genus and species
2.Puma

what are 5 abiotic things in a forest that are a part of a food web? this is for science

Answers

Answer:

minerals, light, heat, rocks, water, temperature, and soil

Explanation:

Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks and water.

Answer:

Sunlight, Temperature, Wind, Water, Soil

Explanation:

You need sunlight for photosynthesis, you need temperature because if a ecosystem or forest is too cold, plants won't grow, if it's too hot, there won't be enough water. Wind because seeds would be transferred throughout. Water, obviously. Soil because nothing can grow without it!

Which point(s) in the water cycle below best illustrate(s) water changing to a gas, and which term(s) could describe it?


1; sublimation or evaporation
1 and 2; evaporation only
3; precipitation or transpiration
3 and 4; transpiration only

Answers

Answer:

1 and 2; evaporation only

Explanation:

4 explains water evaporating turning into gas which is one and 2

the answer is the second one (1 and 2; evaporation only)

A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -use the sunlight to make their own food.travel with other members of their species.are made up of one or more cells.have a skeleton which allows them to move.

Answers

Answer: C. Are made up of one or more cells

Explanation: Good luck! :D

A chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.

What is the significance of the animals and plants?

The significance of animals and plants is that both have unique characteristics and equal importance in nature, such as the plants' ability to produce food through the process of photosynthesis and the animals' ability to keep the system clean, such as when some animals help in plant fertilization, maintain the carbon and oxygen cycles, and so on.

Hence, a chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.

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What is the fluid found in the extracellular matrix that holds cells together as tissue and allows them to communicate with one another?

Answers

The fluid inside of the Extracellular Matrix is Extracellular Fluid. Extracellular Fluid is also called ECF. ECF is mostly tissue fluid. It is also made up of a large amount of intravascular fluid. The remaining smaller amount of ECF is transcellular fluid.

hope i could help :)

Extracellular fluid

(I’m pretty sure hope this helps)
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