Answer:
es la C. Electromagnetic waves travel at different speeds.
The correct option is B i.e. Electromagnetic waves can travel long distances.
what are electromagnetic waves?Electromagnetic waves, or EM waves, are waves that are formed when an electric field and a magnetic field vibrate together. EM waves, in other words, are made up of oscillating magnetic and electric fields. When an electric field collides with a magnetic field, electromagnetic waves are created. As a result, they're called 'electromagnetic' waves.
An electromagnetic wave's electric and magnetic fields are perpendicular to one other (at right angles). They are likewise perpendicular to the EM wave's direction.
Cell phones employ radio frequencies, a type of electromagnetic energy found between FM radio waves and the wavelengths used in microwave ovens, radar, and satellite stations on the electromagnetic spectrum. Ionizing radiation, the type that destroys DNA, is not emitted by cell phones.
To know more about electromagnetic waves here
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which resource is nonrenewable
A.soybeans
B.sunlight
C .copper
D . cattle
Answer:
copper
Explanation:
Copper is your answer because it is nonrenewble
Hope this helps u:)
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IS THE Environment something that it can be harmed, destroyed, saved or preserved?
Combustion reaction
In general, for complete
combustion:
hydrocarbon + oxygen → carbon dioxide + water
i don't know
Answer:
The reaction in the diagram is right.
Explanation:
In complete combustion, hydrocarbon fuels burn in the presence of high concentration of oxygen that produces carbondioxide gas and water which are releases in the atmosphere. Complete combustion takes place only when there is oxygen present in large amount whereas incomplete combustion occurs when the oxygen in the environment is limited so complete combustion required more oxygen as compared to incomplete combustion.
Which of the following does not happen during photosynthesis?
Question 3 options:
O2 is given off
Glucose is made
The sun's energy is reflected
Chlorophyll absorbs the sun's energy
Answer:
The sun's energy is reflected
A planet's revolution around
the sun can be modeled by
swinging a ball on a string in
a circle. In this model, which
of the following represents
gravity holding the planet in
orbit?
A. The ball
B. The string
C. The direction the ball is moving
Professor Tan studies water quality in streams near chemical plants. Which is a type of qualitative data that Professor Tan should record during these studies?
A.the pH of the water
B.any occurrences of unusual odors
C.the oxygen concentration of the water
D.any changes in sizes of fish population
Answer:
A
Explanation:
chemical plants can affect ph level studying water quality narrowed it down to A and C. Then putting chemical plants makes it A.
PLEASE HELP ME FOR 45 POINTSS!!!! ANSWER WILL GET BRAINLIEST!!!!
Mr. Carmen asked his class to observe the following events.
steel wool rusting
wooden splints burning down to ashes
sandstone crumbling when tapped with a hammer
an antacid tablet releasing carbon dioxide bubbles in water
Which of the events produced a physical change?
A. steel wool rusting
B. wooden splints burning down to ashes
C. sandstone crumbling when tapped with a hammer
D. an antacid tablet releasing carbon dioxide bubbles in water
Answer:
I believe your answer should be C good human :3
Explanation:
Please Help!!
Which of the following statements is true of living systems!
Jack is heterozygous for mid-digit hair What is Jack's genotype?
Answer:
might help to add the answer choices, if this is a multiple choicer. if he's heterozygous , his genotype will be a capital and a lowercase, like Hh or Pp
Explanation:
hope this helps
The reason the lactase gene is made is due to ?
Answer: milk is present in the digestive system, which turns on the gene for lactase.
Explanation:
How is sedimentary rock layers used to provide evidence for evolution?
Answer:
its not only provide evidence of the history of earth but it also of changes in organisms whose fossil remains have been found in layers
Explanation:
hopes this helps!
From the top of the stiffer mantle to the center of earth, the rock material is inferred to be
(1) solid all way to the center of the inner core
(2) solid, then liquid to the center of the inner core
(3)solid, then liquid, then solid again to the center of the inner core
(4) solid, then liquid, then gaseous to the center of the inner core
Answer:
2
Explanation:
The earth goes from solid to liquid
why do you think there is so much life on our planet ?
Answer:
Earth's atmosphere and surrounding supports life.
Explanation:
The oxygen, nitrogen and carbon that's abundant on Earth promotes life.
How is the sex of the offspring determined?
solely by which chromosome from the male, the X or the Y, combines with the female chromosome
solely by the "Y" chromosome
independent of the female chromosome
by the combination of the sex chromosomes of the male and female
Answer:
i think its the second one
Answer:
By which chromosome from the male, the X or the Y, combines with the female chromosome
Explanation:
Western boundary currents _____.
a. always travel northward
b. transport heat towards the poles
c. transport heat away from the poles
d. run along the eastern boundaries of ocean basins
e. travel along the equator
The answer ➪ run along the eastern boundaries of ocean basins.
Insta: 25k_kemIn the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
Answer:
Eventually, the environment will be unable to support the production of wildebeests, this will cause there to be a loss of vegitation that then causes a food shortage, and then the wildebeests will starve.
Explanation:
It's a very unhappy process, but those herds who don't migrate to another pasture will starve and die. The death will depopulate the savanna and give the fields some time for regrowth and the cycle will begin again.
Hope this helps! :)
plssssss help Im giving almost all my points
Answer:
Eastern Africa consists largely of plateaus and has most of the highest. ... The Western Rift Valley curves along the western borders of Uganda and Tanzania. ... Apparently established in the 9th century, it is distinguished for its seawalls of coral
hope this was helpful
Explanation:
Hich statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise?
Complete Question:
Which statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise?
Group of answer choices.
A. More oxygen is delivered to muscle cells.
B. Blood cells are excreted at a faster rate.
C. The rate of digestion increases.
D. No hormones are produced.
Answer:
A. More oxygen is delivered to muscle cells.
Explanation:
An aerobic exercise refers to all forms of physical activity that an individual engages in, so as to increase the heart rate (from low to high intensity) in response to the level of oxygen required by any activated or working muscle in the human body.
Generally, aerobic exercise help various individuals to prevent cardiovascular diseases because it makes the heart to beat faster (heart rate increases) to enable it supply more oxygen, which makes the heart to effectively and efficiently pump blood more.
Some examples of aerobic exercise (cardiofitness activity) includes cycling, swimming, jogging, walking, skiing etc.
Hence, the statement which best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise is that more oxygen is delivered to muscle cells.
In August 2004, Hurricane Charley made landfall in Florida. As a consequence, North Captiva Island was fragmented into two different island North Captiva has been one of the low buteds providing a home for the actor
Eastern Indigo snake. Which of the following describes the impact of Hurricane Charley on the Eastern Indigo snake?
1.Genetic diversity will decrease because of genetic drift caused by bottleneck effect
2.Mutations will decrease genetic diversity because the indigo snake became isolated
3. The snakes will learn to swim, become a new species, and emigrate to other parts of Florida.
4. The Easter Indigo will be forced to mate with other species of snakes and become a new species
Answer: the correct answer is actually
1.Genetic diversity will decrease because of genetic drift caused by bottleneck effect
Explanation: this is due to the bottleneck effect because the bottle neckeffect is when size or population decreases due to earthquakes human activity, etc;
1. Genetic diversity will decrease because of genetic drift caused by bottleneck effect
The following information should be considered:
The effect of Hurricane Charley on the Eastern Indigo snake should be because of the bottleneck impact since the bottle neck impact arise at the time when the size or population reduced.It is because of earthquakes, human activity.Learn more: https://brainly.com/question/2386757?referrer=searchResults
Find the solution of the system
-2x-2y=28
2x+4y=-42
PLZ HELP ME ASAP:( !!!!!!
Answweresw
im not too sure
Explanation:
Please help!!! Which of the following happens during interphase
Answer:
A
Explanation:
5. Molecule Cis created when molecules A and B collide. Which line represents this reaction WITH an enzyme present?
l
a. The solid line
b. The dotted line
c. Both lines represent the reaction with an enzyme present
d. Neither line represents the reaction with an enzyme present
Answer:
Dotted line
Explanation:
What statement about enzymes is true.
A. Enzymes raise the activation energy needed in a chemical reaction
B. Enzymes slow down the rate of chemical reactions
C. Enzymes function best at specific pH and temperatures
D. Enzymes are carbohydrates and store short term energy
Answer:
the answer is A
Explanation:
i took edgen test lol
Answer:
C
Explanation:
They lower the activation energy
They speed up reaction rates
they are proteins and sometimes/rarely RNA (ribozymes)
WHAT CAN LARGE CELLS DO TO INCREASE THEIR TOTAL SURFACE-TO-
VOLUME RATIO?
Answer:
infolding of membranes
look at a picture of a mitochondria the cristae are a great example of this weaving in and out of the center of the organelle to increase surface area
Explanation:
Which of these presents an ethical issue associated with genetic testing on humans?
Genetic testing could cause harmful mutations.
Genetic testing could improve the diagnosis of disease.
Genetic testing could cause job discrimination by revealing health risks.
Genetic testing could cause ecosystem damage by accelerating evolution.
Answer:
c. Genetic testing could cause job discrimination by revealing health risks.
Explanation:
Answer:
For the third time I need points and it is C
Explanation:
True or false wave energy can travel in all directions
Answer:
TRUE
The direction of energy transfer is perpendicular to the motion of the waveA: Waves do not always travel in the same directions as the currents. Waves are created by the wind and then radiate in all directions away from the disturbance. Currents represent the movement of water particles which is controlled by winds and density differences. Waves and currents can travel in opposite directions
Explanation:
3. Which gymnosperms are the oldest, tallest plants found in a forest?
A. welwitschias
B. ginkgoes
C. cycads
D. conifers
Answer:
The answer is D
Explanation:
Conifers
Answer:
I hope this helps. ✨God Bless✨
Explanation:
n1
Which process is necessary for the formation of igneous rocks?
What have scientists realized over the years of how temperature affects humans? Does temperature affect climate change? If it does, how can it be reduced?
HELP!!!
Answer:
Temperature affects humans in many different ways.
Explanation:
Humans can be affected by temperatures because high temperature often can cause health problems, people may feel: Increased irritability. Loss of concentration and ability to do mental tasks. Also temperature doesn't really affect climate change, its more like the other way around. Thing you can do to reduce climate change are use renewable energy, and don't use cars if you don't have to. Because the gas that comes out of the cars turns into green house gas which is the cause of climate change.