What does it mean when there is a chemical change?
There is a change in the size or shape of an object
One substance has changed into another
A solid changes into a chemical
A liquid changes into a gas
Answer:
One substance has changed into another
Explanation:
A Chemical change is a change that takes places when a substance changes its composition by forming one or more new substances. As here also, one substance is changing into one or more new substance, thus it exhibits a chemical change.
When an object rolls over a surface, what type of force is acting on it?
Answer:
Rolling Friction is the force
Answer:
Rolling friction
Explanation:
this is a friction that acts on objects when they are rolling over a surface.
Match each image of a mirror with the type of mirror that describes the shape.
Write the letter next to the term on the blank space in the provided image
A. flat mirror
B. convex mirror
C. concave mirror
Answer:
The top left mirror is C.) concave mirror. This is because the reflective surface is curved inward, creating a curve that is less than 180°. Remember, the reflective surface is the side the light strikes.
The top right mirror is B.) convex mirror. This is because the reflective surface bulges outward.
The bottom mirror is A.) flat mirror.
1. List at least two ways that you and your family currently limit the amount of energy that you use.
2. Then list at least five ways that you might further reduce your energy usage, even if it means some personal sacrifices.
Answer:
1. Turns lights off when not being actively used, and unplug devices, even when being turned off just being plugged in still drains electricity!!
2. Limit the use of electronic devices, limit the use of lighting unless necessary(?), Limit use of charging devices; meaning maybe don't leave them plugged in constantly, Limit amount of devices and/or devices used during a period of time.
Explanation:
What does it mean if others get results that are consistent with yours?
a) The result would disagree
b) The result would agree
c) The result would be inconclusive
d) The result would be inaccurate
An ecosystem is all the populations of organisms that live together and
A. the physical factors with which they interact
B. the organisms that generate energy from sunlight
C. the microorganisms that depend on them
D. the food that they take in as energy
Can someone help please!
Jade described one of the components of weather as follows:
It drops as you go higher.
It is usually higher on summer days.
Its low and high are usually shown on weather map.
True or false. Adaptive radiation is a type of evolution that produces new species.
Explain your answer.
true
like wolves into dogs
adaptive radiation is a process in which organisms diversify rapidly from an ancestral species into a multitude of new forms
wikipedia
https://onsteinison.wordpress.com/tag/adaptive-radiation/
Answer:
true
Explanation:
Adaptive radiation is rapid speciation under conditions in which there is little competition. Mass extinctions reduce competition and allow for periods of rapid speciation.
Why are some deer able to jump higher and run faster than other deer?
Answer
A
They train by running and jumping every day.
B
They inherit physical genetic traits that enable that ability.
C
All deer have the same abilities; the lucky ones survive.
D
Some deer try harder than the deer that are lazier
Which form of precipitation falls from the sky as solid flakes?
Hail
Rain
Sleet
Snow
(NEED ANSWER QUICK!)
Yellowstone volcano
If you found out that Yellowstone was erupting, who would you want to find first?
Where do you think you would go to find safety?
If you survived, what do you think the World would be like after it was over?
How long would it be that way?
Can you think of another time in our Earth's history where something like this happened and affected a society of people?
If the Yellowstone volcano erupts I hope to find my family and I would stay at home. I believe that after this event, the sky would be opaque for a long time due to ash, something similar to the mass extinction of dinosaurs.
What is the Yellowstone volcano?The Yellowstone supervolcano is a volcanic caldera located in Yellowstone National Park (Wyoming) in the United States. The caldera measures approximately 55 × 72 km.
This volcano was formed during the last of the three super-eruptions that occurred over the last 2.1 million years.
What would happen if this supervolcano erupted?If the Yellowstone supervolcano were to erupt, it would produce a massive ash shower that would cover the entire United States for decades.
On the other hand, the climatological conditions would be modified, given the magnitude of the geological formation that rests, still active, below the National Park.
Learn more about Yellowstone in: https://brainly.com/question/24567147
#SPJ1
In one or two sentences, explain what the main impact tsunamis cause on humans .why is it difficult to avoid a tsunamis
Answer:
Many people die from tsunamis because of drowning, and injuries such as broken limbs and head injuries can be caused. It's difficult to avoid tsunamis because they're hard to predict.
1 impact of tsunamis
A major impact of tsunamies on Humans is the damage that they do to everything. They don't just do damage to Property and Structures, they do damage to people's lives, and ecosystems in the water and also ecosystems near the water. The water has such a high speed and force that it can tear down buildings as you must have seen in movies. That is for obvious! But how do they effect ecosystems? They do that because when they are coming towards land, then they're carrying lots of ecosystems inside the waves, then, the animals in that go with the wave on the land, and then stay on the land while the water goes back to the ocean. So the thing is that the water needing animals will die in this situation. So they're damaging the ecosystems also.
Why is it difficult to avoid a tsunami?
The main thing is that natural disasters can't be avoided by humans in anyway. Humans don't have the capabilities to stop these things because these are the miseries of the world which we can't avoid. The reason why these happen is because of earthquakes underwater or also meteors falling on water. So that's why, these are unavoidable since we can't stop earthquakes and meteors. But we can put some effort into making the damage less by making giant walls and protection things. There are many technologies that can do this, but still, it will be hard since the water is liquid form, and it will take the form of it's container, meaning it will flow wherever it can. That's why it's HARD to avoid them.
Thanks!
Typed out by: BrainlyMaster21
In a group of dogs, some individuals have short fur and others have long fur. In this gropp,
the gene for the fur length trait has two alleles. The allele F is for short fur, and the allele fis
for long fur.
Marley, a dog from this group, has long fur. Marley has two alleles for long fur.
Based on this information, what is Marley's phenotype for the fur length trait?
FF
FI
short fur
long fur
Answer:
long fur
Explanation:
Phenotype refers to an individual's observable traits, such as height, eye color, and blood type ( the outside apperance ) so what is the dog's fur can be discribed as ? the answer is long fur
Surface currents are caused by ____.
Multiple choice question.
A)
upwelling
B)
cold water
C)
warm water
D)
winds
Answer:
the answer is D
The winds pull surface water , creating currents
Answer:
A
Explanation:
upwelling
this occurs due to frequently boiling of water in the vessels carrying out the process of ignition.
Jupiter is much more massive than Earth. Which of the following would be true?
Is there Precipitation in Morris County? How do you know?
Lab: Dichotomous Keys
If two unbalanced forces act on an object in opposite directions, the object will move in the direction that the stronger force is acting.
Answer:
A because weight is relative to the mass of an object
An object is floating in the water, as shown in the picture below.
Describe the movement of the floating object as a wave passes by, and explain why the object is not carried forward with each wave.
Your answer should include at least two complete sentences.
Answer:
Balance Weight
Explanation:
The object has vertical weight with a floating device in it. When the waves hit the object in the water, they will go upward and then downward but stay in the original spot. This happens because the object uses the electromagnetic energy from the waves to not move with it.
The Hertzsprung-Russell diagram below shows the relationships among stars based on color, brightness, and surface temperature.
Using the diagram, how should you classify a star with the brightness of 100,000 suns and a surface temperature of about 3,000 degrees Kelvin (K)?
This passage describes the xeroderma pigmentosum trait in humans:
Xeroderma pigmentosum is a condition that causes skin to be easily damaged
by sunlight. Humans with xeroderma pigmentosum avoid exposure to sunlight by
wearing protective clothing, using sunscreen, and not going outside during the
day.
In a group of humans, some individuals have xeroderma pigmentosum and others do not. In
this group, the gene for the xeroderma pigmentosum trait has two alleles. The allele E is for
not having xeroderma pigmentosum, and the allele e is for having xeroderma pigmentosum.
Hunter, a human from this group, does not have xeroderma pigmentosum. Hunter has two
alleles for not having xeroderma pigmentosum.
Based on this information, what is Hunter's genotype for the xeroderma pigmentosum gene?
Ee
EE
not having xeroderma pigmentosum
having xeroderma pigmentosum
Answer:
Xeroderma pigmentosum, which is commonly known as XP, is an inherited condition characterized by an extreme sensitivity to ultraviolet (UV) rays from sunlight. This condition mostly affects the eyes and areas of skin exposed to the sun. Some affected individuals also have problems involving the nervous system.
The signs of xeroderma pigmentosum usually appear in infancy or early childhood. Many affected children develop a severe sunburn after spending just a few minutes in the sun. The sunburn causes redness and blistering that can last for weeks. Other affected children do not get sunburned with minimal sun exposure, but instead tan normally. By age 2, almost all children with xeroderma pigmentosum develop freckling of the skin in sun-exposed areas (such as the face, arms, and lips); this type of freckling rarely occurs in young children without the disorder. In affected individuals, exposure to sunlight often causes dry skin (xeroderma) and changes in skin coloring (pigmentation). This combination of features gives the condition its name, xeroderma pigmentosum.
People with xeroderma pigmentosum have a greatly increased risk of developing skin cancer. Without sun protection, about half of children with this condition develop their first skin cancer by age 10. Most people with xeroderma pigmentosum develop multiple skin cancers during their lifetime. These cancers occur most often on the face, lips, and eyelids. Cancer can also develop on the scalp, in the eyes, and on the tip of the tongue. Studies suggest that people with xeroderma pigmentosum may also have an increased risk of other types of cancer, including brain tumors. Additionally, affected individuals who smoke cigarettes have a significantly increased risk of lung cancer.
The eyes of people with xeroderma pigmentosum may be painfully sensitive to UV rays from the sun. If the eyes are not protected from the sun, they may become bloodshot and irritated, and the clear front covering of the eyes (the cornea) may become cloudy. In some people, the eyelashes fall out and the eyelids may be thin and turn abnormally inward or outward. In addition to an increased risk of eye cancer, xeroderma pigmentosum is associated with noncancerous growths on the eye. Many of these eye abnormalities can impair vision.
About 30 percent of people with xeroderma pigmentosum develop progressive neurological abnormalities in addition to problems involving the skin and eyes. These abnormalities can include hearing loss, poor coordination, difficulty walking, movement problems, loss of intellectual function, difficulty swallowing and talking, and seizures. When these neurological problems occur, they tend to worsen with time.
Researchers have identified at least eight inherited forms of xeroderma pigmentosum: complementation group A (XP-A) through complementation group G (XP-G) plus a variant type (XP-V). The types are distinguished by their genetic cause. All of the types increase skin cancer risk, although some are more likely than others to be associated with neurological abnormalities.
Explanation:
Match each letter with the part of the wave it represents in the diagram below.
Answer:
A-wavelength, B=amplitude, C=crest, D=trough
Explanation:
1 more please Chromosomes:
Answer:
D. All of the above!!
Explanation:
Chromosomes will contain many genes, are made of DNA [hence X and Y chromosomes ;) ] and can definitely be found in the nucleus of a cell
Which of the following BEST matches the definition of interdependence?
Answer:
The third option
Explanation:
The definition of interdependence is relying on other things
Match each description of how a light wave interacts with matter with the correct definition.
Changing air pressures help to create wind patterns and cause weather.
True
or
False
It's True.
Explanation:
A change in air pressure can create wind. The wind will become stronger as the pressure difference increases. Wind and air pressure are very connected with one another. Differences in air pressure around the planet drive wind and ultimately, our weather patterns.
True or false. Fossils are the only type of evidence that supports the theory of
evolution. Explain your answer.
Answer:
True
Explanation:
The evidence for evolution is found at all levels of organization in living things and in the extinct species we know about through fossils.
When a guitar string is plucked, sound waves, which are mechanical waves, transmit sound to your ears. What is the primary medium through which the sound waves travel?
For this assignment, you will develop several models that show how light waves and mechanical waves
are reflected, absorbed, or transmitted through various materials. For each model, you will write a brief
description of the interaction between the wave and the material. You will also compose two typewritten
paragraphs. The first will compare and contrast light waves interacting with different materials. The
second will explain why materials with certain properties are well suited for particular functions.