Answer:
Nitrogen and phosphorus are essential elements for all living organisms. They are used in DNA and chemical processes in the body. Most nitrogen is found in the air and most phosphorus is bound up in rocks and sediments, making them unavailable to organisms. And they are pollutants cuz nitrogen and phosphorus support the growth of algae and aquatic plants, which provide food and habitat for fish, shellfish, and smaller organisms that live in water. But when too much nitrogen and phosphorus enter the environment - usually from a wide range of human activities - the air and water can become polluted
Explanation:
if my answer help, I hope you get better <3
Explanation:
When nitrate and phosphate ions concentrations in shallow waterbodies are in excess, there is overgrowth of water plants leading to the formation of algal bloom. This causes a high consumption of dissolved oxygen in the water. ... The dead plants and animals decay creating deterioration of water quality.
11 The diagram below shows two important parts of the human digestive system.
Answer:
A c B
Explanation:
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Select the items below that produce gamma rays in space.
pulsars
supernova explosions
lightning
regions around black holes
neutron stars
nuclear explosions
radioactive decay
Answer:
Neutron stars
Radioactive decay
In Kevin’s favorite comic book, the superhero has special powers. In one adventure, the superhero must stop an evil villain who threatens to destroy the city with a powerful energy blast.
As he confronts the villain, he makes the following claims:
1: “I can create an energy force field to save the city.”
2: “I can destroy the energy before it destroys the city.”
3: “I can convert all the energy before it can do any harm to the city.”
4: “I can absorb all the energy and make it go away.”
If the superhero must obey the law of conservation of energy, which of the above can he actually do?
a. 1
b. 2
c. 3
d. 4
Answer:
3
Explanation:
The law of conservation of energy states that energy cannot just be created, so answer one is out. Energy also cannot be simply destroyed, so answer to is out as well. From here it gets tricky, since both answers make some sense under these rules. However, absorbed is bassically the same as destroying it leaving only answer three. Answer three does obey these laws, as energy can be converted.
The graph below shows the mechanical energy of a car on a roller coaster at four different locations.
Which of the following is a supported by evidence from the graph?
Potential energy increases but kinetic energy stays the same during a roller coaster ride.
Kinetic energy and potential energy change, but energy is neither created nor destroyed during a roller coaster ride.
Potential energy is destroyed during a roller coaster ride.
Kinetic energy is created during a roller coaster ride.
A)Potential energy increases but kinetic energy stays the same during a roller coaster ride.
Explanation:
Potential energy is stored energy that depends upon the relative position of various parts of a system.
Kinetic energy is a form of energy that an object or a particle has by reason of its motion
it goes back and fourth
HELP ASAP BRAINLIEST INCLUDE
Answer:
[D] Changes occur in organisms over long period of time
[RevyBreeze]
A student drank a bottle of water during a car ride up a mountain. At the top of the mountain, the student capped the plastic bottle. During the drive back down the mountain, what might happen to the bottle?
A) It will expand because the air is lower at the bottom of the mountain.
B) It will contract because the air pressure is higher at the bottom of the mountain.
C) It will become lighter. The air particles in the bottle weigh less because they are from the top of the mountain.
D) It will not change because it is empty and contains no air.
can someone answer these chemistry questionss
you are able to search it up and this looks more like math then chemistry
Which of the following are true when milk changes into curd?
(i) Its state is changed from liquid to semi-solid.
(ii) It changes colour.
(iii) It changes taste.
(iv) The change cannot be reversed.
Choose the correct option.
a) (i) and (ii)
b) (ii) and (iii)
c) (i), (iii) and (iv)
d) (i) to (iv)
Answer: If you still need it, i can answer.
the answer is C.
Milk doesn't really change color.
hope this helps. have a nice day.
Image shows a lake, a factory, a cloud in the sky, a cow, dead organisms, a tree, and the sun. An arrow from the sun to the tree is labeled A. An arrow from the sky to the tree is labeled B. The sky is labeled C above the cloud. The letter D is in the air and an arrow points from it down to dead organisms. An arrow points from dead organisms to the ground labeled E. An arrow points from the cow into to the sky labeled F. An arrow points from the factory to the sky labeled G. An arrow from the sky to the lake is labeled H above the lake.
Using the diagram above, match the description to the corresponding location in the carbon cycle model. Provide the letter only.
Carbon dioxide is converted to sugar used for food.
Carbon trapped in fossil fuels is converted to carbon dioxide.
Organic carbon is converted to fossil fuels.
Carbon dioxide is converted to carbonates.
Sugar is broken down and converted to carbon dioxide.
Location ________
Location ________
Location ________
Location ________
Location ________
Part Two
Images shows a lake labeled carbonates in water, a cow labeled animal respiration, a tree labeled photosynthesis, a factory labeled factory emissions, the sun labeled sunlight, a cloud labeled carbon dioxide in atmosphere, another tree labeled plant respiration, an arrow from organic carbon to dead organism, and fossils and fossil fuels. Arrows are labeled as follows: A from the sunlight to photosynthesis, B from carbon dioxide in atmosphere to photosynthesis, C from factory emissions to carbon dioxide in atmosphere, D from carbon dioxide in atmosphere to carbonates in water, E from dead organisms to fossils and fossil fuels, and F from plant respiration to the sky.
Using the diagram above, answer the following questions:
True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.
Answer:
A - 1. Carbon dioxide is converted to sugar used for food (this is process of phosynthesis).
G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide (this is combustion of fuel).
E - 3. Organic carbon is converted to fossil fuels.
H - 4. Carbon dioxide is converted to carbonates.
F - 5. Sugar is broken down and converted to carbon dioxide (this is breathing).
A student performs an exothermic reaction in a beaker and measures the temperature. If the thermometer initially reads 35 degrees Celsius, what is a possible reading of the thermometer after the reaction? A. 35 degrees Celsius B. 0 degrees Celsius C. 45 degrees Celsius D. 25 degrees Celsius
Answer:
C
Explanation:
Exothermic means that heat is released from the reaction
For most activities, the ________ makes a handy frame of reference.
An index fossil represents a species that lived during
A.
a long interval of Earth's history.
B.
Earth's entire history.
C.
a short interval of Earth's history.
D.
several intervals of Earth's history.
which one is it?
Answer:
C
Explanation:
an index fossil is a fossil from a very short-lived, geographically widespread species known to exist during a specific interval of geological time.
If a scientist knows the relative age of a fossil, he can also know
A.
the type of climate from which it came.
B.
the relative age of the rock where it was found.
C.
how it became extinct.
D.
how long the organism was alive.
The diagrams show two different ways that water, methane, and acetic acid can be modeled. Look closely at each type of model. Explain what each type of model shows best.
HELP ME PLZ!
T^T
Answer:
they all show the chemical makeup
Explanation:
in a neap tide, the moon's effect on blank
Answer:
Neap tides occur during the first and third quarter moon, when the moon appears "half full"
I have asked this already!!!!!
Answer:
01) Cu tting hair is a physical change. reason-1
02) Cooking can be either one, but I would choose chemical reason-3
03) Ice cream melting is a physical change reason-2
Explanation:
What type of cells make up all parts of the human body?
Select one:
Prokaryotic cells
Eukaryotic cells
Archaea cells
Circular cells
Answer:
Eukaryotic Cells
Explanation:
Eukaryotic cells have organelles, membrane-bound structures that perform different functions in the cell, and prokaryotic cells do not. Some typical eukaryotic organelles include the nucleus, mitochondria, ribosomes, Golgi apparatus, and chloroplasts.
When telescopes are looking at objects that are really far away, they are actually looking back in time.
True
False
Answer:
true
Explanation:
looking i the sky you can see stars that are billion years old
Time can be traversed via a telescope. Looking out into space is like looking back in time, according to NASA experts. Light needs time to traverse vast distances of space and come to Earth. Here the given statement is true.
The "deep" in Hubble Deep Field denotes the telescope's capacity to see some of these far-off, faint objects. It's like observing faraway space objects by going back in time. Even though light travels at an astounding rate, it still needs some time to cross the vastness of space.
Light travels slowly, so we don't see things as they are now, but as they were when they released the light that reached us from all over the galaxy.
Thus the given statement is true.
To know more about telescopes, visit;
https://brainly.com/question/30246219
#SPJ4
Order the colors of the visible light spectrum from longest wavelength to shortest wavelength.
green
yellow
orange
red
violet
indigo
blue
Answer:
red, orange, yellow, green, blue, indigo and violet.
HELP ASAP!!
Which statement accurately describes in terms of energy what happens when water turns to steam?
The water releases energy which causes chemical bonds to break, changing water to steam.
The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
The water absorbs energy which causes chemical bonds to break, changing water to steam.
Answer:
B
Explanation:
I did this b4 ♀️
I need help with this one
Answer:
Claim 1 is the correct answer.
What type of microscope has to be used for
Nucleus of a plant cell
Surface of a dust particle
Feeding behavior of a microorganism
Structure of a single white blood cell
Answer:
Nucleus of a plant cell = light microscopes
surface of a dust particle = scanning electron microscope.
Feeding behavior of a microorganism = electron microscopy.
Structure of a single white blood cell = typical optical microscope
Why have ice ages come and gone?
Answer:
"When less sunlight reaches the northern latitudes, temperatures drop and more water freezes into ice, starting an ice age. When more sunlight reaches the northern latitudes, temperatures rise, ice sheets melt, and the ice age ends."
Explanation:
Answer:
As temperatures decrease, less sunlight reaches the water. This causes the ice to freeze, when this happens in mass it causes an ice age. Later, temperatures rise and the ice melts.
Explanation:
Temperatures plummet as less sunlight reaches northern latitudes, and more water freezes into ice, triggering an ice age. Temperatures rise, ice sheets melt, and the ice age ends as more sunshine reaches northern latitudes.
11 The diagram below shows two important parts of the human digestive system.
Answer:
C
Explanation:
food first goes into the small intestine which is part b before the large intestine which is part a
Use diagram #2 and try to explain what you think is happening during each of the following process: Fixation, Denitrification, nitrification, leaching, atmospheric nitrogen
Diagram included below. Please hurry and answer THANK YOU. I dont know the subject sorry
Answer: For each of them or just one?
Explanation:
How do telescopes help astronomers learn more about the universe?
a. Telescopes gather more light than the n a k e d eye can see.
b. Telescopes gather less light than the n a k e d eye can see.
c. Telescopes change the color of the light that we see.
d. Telescopes apply a filter to the light that we see.
Answer:
A. Telescopes gather more light than the n a k e d eye can see
Explanation:
Telescopes allow us to see things from far away by gathering more light
Somebody, please help me answer this question, I don't understand it and its due tomorrow.
Answer:
A
Explanation:
The contents of the left side have moved down, this is able to be told because the "a" used to be in the same position all the way across. The left side moved down, and the right side moved up to create what is seen on the chart.
OK I NEED HELP ON THESE BUT CAN U PLEASE LIKE EXPLAIN Y
Answer:
For the 1st question, it is the pickup truck.
Explanation:
Even though they are the same speed, the pickup truck is curving. So, I think it changes velocity.
Answer:
For the 2nd question, it is B.
Explanation:
Accelaration is either slowing down, speeding up, or changing direction. However, B is in a straight line. So, it must be B.
AHHHH CAN SOMEONE PLEASE HELP ME WRITE ONE OF THESE I HAVE TO FINISH IT BY THE END OF THIS CLASS AND THERES NOT MUCH TIME LEFTTT PLEASE HELPPP
Answer:
So, by the look of the graph I can see that she was walking to her destination and got lose for a min or two because she was walking straight then she must found her way back on track and begin walking ahead again.
What temperature are the objects in space that x-rays come from?
a. millions of degrees Celsius
b. billions of degrees Celsius
c. hundreds of degrees Celsius
d. thousands of degrees Celsius