which of the following could be an observation in an investigation?

a. oil is not a good solvent for salt
b. the oil did not dissolve the salt sample
c. with enough mixing, the oil will probably dissolve salt
d. oil deep beneath the surface of the earth could leach salt from the rocks

Answers

Answer 1
b is the answer have a good day
Answer 2
B is the answer, because observe means to see, therefore you can see that the oil did not dissolve the salt sample.

Related Questions

Describe the path of a nitrogen atom through four parts of the nitrogen cycle. Be sure to explain the processes involved in the transfers. Note when a form of nitrogen is available to plants.

Answers

Answer: One of the ways the path of a nitrogen atom begins is as a part of an ammonium ion. A plant takes up the ion and uses it to make an organic molecule through assimilation. The organic molecule falls back to the ground as part of a leaf. The leaf is decomposed by bacteria, and it is converted back to ammonium by ammonification. The ammonium ion is then converted to nitrite by nitrifying bacteria through nitrification.

Explanation: That's what popped up after I hit submit so that's the answer hope this hepls.

Answer:

A nitrogen atom can start its journey as part of an ammonium ion, for example. Through assimilation, a plant absorbs the ion and uses it to create an organic molecule. As part of a leaf, the organic molecule returns to the earth. Bacteria breakdown the leaf, which is then turned back to ammonium by ammonification. Through nitrification, the ammonium ion is transformed to nitrite by nitrifying bacteria.

Explanation:

Imagine a patient came into your medical practice. What are symptoms that, collectively, would indicate a possible respiratory problem? Describe at least three symptoms, and include at least one objective measure and one subjective measure.

Answers

Answer:    1. Cancer   2. Blood virus  3. heart problems

Explanation:

hope this helps

srry if I am wrong

Photovoltaic cells and hydrogen fuel cells share which of the following advantages?
I. No emission of air pollutants
II. Abundance of resource
III. Inexpensive compared to other resources

A. I only
B.II only
C. I and II only
D. I, II, and III

Answers

Answer:

C. I and II only

Explanation:

i took the test and got it right

Photovoltaic cells and hydrogen fuels are inexpensive compared to other resources as well as they produce no pollutants to the surroundings. They components are abundant in nature as well. Hence all the options are correct.

What is photovoltaic cell ?

A photovoltaic cell uses solar energy and converts the light energy to electrical energy. They are working with the principle of photoelectric effect. The solar energy is abundant to use and it is relatively less expensive to design the photovoltaic cells.

Fuel cells are using hydrogen as fuel. Hydrogen is abundant in the universe and is most efficient than all other fuels sources. Fuels cells involve the reaction of hydrogen and oxygen forming and water and not any other compounds are formed.

Both photovoltaic cells and hydrogen fuels are eco-friendly in the sense that they does not produce any pollutants to the atmosphere. Therefore, all the given are advantages of photovoltaic cells and hydrogen fuel.

Find more on hydrogen fuel:

https://brainly.com/question/14790789

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What is the role of respiration in living organisms?

- It breaks food down into the molecules that can be used by the cells.
- It removes waste products and excess water from the body.
- It supplies food and oxygen to the cells and removes cellular waste.
- It transforms the energy in food into energy that can be used by cells.

Answers

Answer:

It transforms the energy in food into energy that can be used by cells.

Explanation:

i took the quiz and got it right

the process of elimination of nitrogenous waste from the body

Answers

Answer:

Excretion

Explanation:

The excretory system removes cellular wastes and helps maintain the salt-water balance in an organism. When cells break down proteins, they produce nitrogenous wastes, like urea. The excretory system serves to remove these nitrogenous waste products, as well as excess salts and water, from the body.

A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it.
The student first proceeds to open the soft drink bottle and place it on the floor.
Next the student drops candy tablets into the drink using a rolled piece of paper, so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble.

In this scenario, what would be the catalyst ?

The candy tablets being added to the drink.
The gasses being released when the drink was first opened.
The piece of paper being placed over the soft drink.
The container that holds the liquid.

Answers

Answer:IDK

Explanation:

Answer: the candy tablets being added to the drink.

Explanation:

I took the test on edge

Help please I have no time

Answers

I believe its the bottom on im not sure but I believe

Answer:

the 0.001

Explanation:

believe pls...its true

Why is Biodiversity considered Earth's own “ Safety net”?

Answers

Answer:

Explanation:

Biodiversity allows for everything to exist. All types of animals, plants, etc. work and contribute in different ways, the actions that every species makes contribute to the larger ecosystem which allows for plants to grow, food to exist, other species to thrive, the atmosphere to exist, etc. All of these side effects create a system that allows Earth to maintain a habitable state and prevents it from becoming a dry and bare planet that cannot sustain life.

some please help ASAP!!
i will give brainliest!!

Answers

Acidic groundwater dissolving limestone

What is the brain of the cell? I will award brainliest and friend you to give you a code for among us this Saturday. *I will post more questions for other people*

Answers

the nucleus is the brain of the cell.

5.
anatomy is the study of structures that are too small to be seen with the
naked eye.
O A. Microscopic
B. Human
O C. Macroscopic
D. Gross

Answers

Microscopic anatomy is the answer

why social relationships are necessary for the survival of human being​

Answers

Answer:

They help you live longer

Explanation:

Research has shown that social connections not only impact your mental health, but your physical health as well. A review of 148 studies (308,849 participants) indicated that individuals with stronger social relationships had a 50% increased likelihood of survival.

. What is the answer?

Answers

Answer:

I believe D

Explanation:

Since they are finding plankton, mollusks, etc.  in that part of florida it was most likely underwater.

Use scientific reasoning and the food web to explain why, in general, it makes sense that the lion population is taking longer to recover than the herbivore populations.

Answers

Answer:

Explanation:

Herbivores are able to come back easily when they are search for food because their are more than enough food for them to prey on while in lion population, their main feed also take longer period to be produced since they also feed on animal that take time to give birth such as zebras, so they go for other smaller organisms such as waterbucks which take them more time to be completely feeds on to gain required energy.

PLEASE HELP!!Drag each label to the correct location
Match each example with the system where it belongs
mountain range
pond
gaseous nitrogen
lake
coastal vegetation
microorganism
Hydrosphere
Geosphere
Atmosphere
Biosphere

Answers

For the Hydrosphere, drag Pond and lake.
For the Atmosphere, drag gaseous nitrogen.
For biosphere, drag Mountain Range, micrograms, and coastal vegetation.
I don’t know about the Geosphere (sorry)

The matching of each example with the system where it belongs is as follows:

Hydrosphere: Pond, Lake, etc. Geosphere: Mountain range. Atmosphere: Gaseous nitrogen. Biosphere: Microorganisms and Coastal vegetation.

What is an Atmosphere?

An atmosphere may be characterized as a type of layer that significantly of numerous gases that surrounds any celestial planet like earth. The atmosphere of the earth is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.

The atmosphere of Earth is significantly composed of gaseous nitrogen. While the biosphere majorly consists of all sorts of living organisms like microorganisms and coastal vegetation. The hydrosphere deals with something that is related to the presence of water, i.e. ponds, lakes, rivers, seas, etc.

Therefore, the matching of each example with the system where it belongs is well mentioned above.

To learn more about Biospheres, refer to the link:

https://brainly.com/question/12467010

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Si durante la division de las celulas de la raiz de una planta se aplica una sustancia x que destruye el complwjo de golgi de estas celulas¿cual sera el efecto esperado en dicho tejido

Answers

Answer:

cada célula tendrá dos núcleos

Explanation:

El complejo o aparato de Golgi es un organela compuesta por un grupo de membranas apliladas una sobre la otra formando una serie de sacos aplanados. El complejo de Golgi tiene diversas funciones: maduración, modificación (glicosilación), transporte y secreción de proteínas. En células vegetales, el aparato de Golgi sintetiza vesículas que forman parte del tabique telofásico el cual sirve para dividir el citoplasma de células vegetales durante la citocinesis. En consecuencia, si se eliminara esta organela, el tabique telofásico no se formaría y las células resultantes estarán compuestas por dos núcleos.

The faster an object moves, the
kinetic energy it has.
A)
More
B)
Less
C)
None
D)
All Above

Answers

Answer:

it is number B. more

Explanation:

I think it is helpful

Help please, I want the answer

Answers

Answer:yes

Explanation:

Need help ASAP.Will give you brainlist.

Answers

bruh bruh bruh bruh bruh bruh

In a neighborhood, many people were killed in a fire. What could provide a clue about identification of the victims if the bodies were completely mutilated?
A.
fingerprints
B.
hair
C.
teeth
D.
blood
E.
bones

Answers

Answer:

blood or bones but i would go with blood.

Explanation:

Using at least three sentences, describe the process of weathering, and explain how it can happen physically or
chemically?

Answers

Answer: Chemical weathering decomposes or decays rocks and minerals. An example of this is water and limestone. Organic weathering happens when plant break up rocks. One the rock has been weakened and broken up it is ready for Erosion. This happens when rocks are picked up and move usually by water. Mechanical weathering breaks up rocks, this usually happens when water gets into cracks, freezes and expands the rock

Explanation:

Answer:

chemical weathering decomposes or decays rocks and minerals. An example of this is water and limestone. Organic weathering happens when plant break up rocks. One the rock has been weakened and broken up it is ready for Erosion. This happens when rocks are picked up and move usually by water. Mechanical weathering breaks up rocks, this usually happens when water gets into cracks, freezes and expands the rock

Explanation:

HELPPPPP PLEASEEEEE!!!

Answers

What are you supposed to do ! Maybe I can help

Summarize the connection between the heart and the lungs

Answers

Answer:

The heart and lungs work together to make sure the body has the oxygen-rich blood it needs to function properly. The Pulmonary Loop The right side of the heart picks up the oxygen-poor blood from the body and moves it to the lungs for cleaning and re-oxygenating.

Explanation:

Which factor best explains the reason that average summer temperatures are higher than winter temperatures in North America?

Answers

Answer:

Explanation:

The Earth is closer to the sun during the summer months

The relationship between an owl and a mouse is a

A. parasite-host relationship.
B. symbiotic relationship.
this
C. mutualistic relationship.
D. predator-prey relationship.

Answer quickly!!

Answers

Answer:

D. Predator-prey!

Hope This Helps! And that I wasn't too late!

The correct answer is D=Predetor-prey relationship.

Explanation:

The owl is a mouses predetor so the only correct answer will be D=Predetor-prey relationship.

A site where RNA-polymerase can bind to begin transcription is called
A
the lac operon.
В.
a promoter.
C с
an operator
D. a Hox gene.

Answers

Answer:

B

Explanation:

it's right trust me I wouldent betray you :3


What occurs during a chemical reaction?
А
Atoms of two or more elements are destroyed
B.
Atoms of two or more elements oppose one another
С
Atoms of two or more elements bond together
D
Atoms of two or more elements trade protons

Answers

Answer: b

Explanation:

Identify the molecule that is produced during both photosynthesis and cellular respiration to power chemical reactions.
Group of answer choices

ATP

Glucose

Water

Carbon dioxide

Answers

Answer:

Photosynthesis and cellular respiration are connected through an important relationship. ... ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in ... Without oxygen, much less ATP would be produced.

Explanation:

How is the speed of a river’s flow determined?
WILL MARK BRAINLIEST

Answers

Answer:

Factors that affect the speed of a river include the slope gradient, the roughness of the channel, and tides.

Explanation:

Continental volcanic arcs are associated with the _____ plate boundary.

Answers

Answer:

oceanic-continental convergent

Explanation:

Continental volcanic arcs are associated with the oceanic-continental convergent plate boundary.

Hope this helps, could I please have Brainliest?

Oceanic-continental convergent, the other guy already answered but its ok
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