Why do some igneous rocks have holes? Name and explain.

Pls tell me which igneous rocks have holes

Answers

Answer 1

Answer:

Igneous rocks like pumice have holes because the maga/lava cools quickly, trapping air and gas bubbles inside.

Explanation:

Hope this helps u :D

Answer 2

Answer:

Igneous rocks like pumice have holes because the maga/lava cools quickly, trapping air and gas bubbles inside.


Related Questions

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.

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.

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:

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

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

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.

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 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

Need help ASAP.Will give you brainlist.

Answers

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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

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

Answers

Acidic groundwater dissolving limestone

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.

Please help ASAP
What is a 'fixed' cell in? I'm learning about the cell cycle of mitosis.

Answers

usually large, irregular, and branching phagocytic cell existing in certain tissues (as connective tissue), lymph nodes, or spleen but sometimes becoming amoeboid and moving through the tissues.


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:

. 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.

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:

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PLZ ANSWER FAST
Thermoses work because they minimize which kinds of heat transfer?
A.Conduction and convection
B. Conduction and radiation
С. Convection and radlation
D. Conduction, convection, and radiation​

Answers

Answer:

B or C

Explanation:

I read about this awhile ago just forgot if it was ethier conduction or convection

The thermal heat energy transfers through various modes. Thermoses work because they minimize conduction and radiation transfer of heat. Thus, option B is correct.

What is heat transfer?

Heat transfer has been the process that moves the heat from higher temperature towards the area of lower temperature. Conduction, convection, and radiations are the three modes of heat energy transfer.

In conduction, the heat flows from one body to another when they are in contact, and in radiation the heat flows in the waveform that does not need any direct contact. It needs an indirect medium to transfer the heat from high to lower temperatures. Thermoses do not show convection as it keeps the temperature constant.

Therefore, option B. thermoses use conduction and radiation.

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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:

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:

please help me I will mark brainliest
A human cell has 46 total or 23 pairs of chromosomes. Following mitosis, the daughter cells would each have a total of ______ chromosomes. After meiosis I, the two daughter cells would have _____chromosomes, and after meiosis II ______ chromosomes.
Select one:
a. 23, 23, 23
b. 46, 23, 23
c. 46, 12, 12
d. 46, 46, 46

Answers

Answer: B is the answer

Following mitosis, the daughter cells would each have a total of 46

chromosomes.

After meiosis I, the two daughter cells would have 23 chromosomes, and

after meiosis II it will still remain as  23 chromosomes.

Mitosis is a type of cell division that involves the production of identical

daughter cells. The daughter cells usually contain 46 chromosomes with all

the parent traits present.

Meiosis is a type of cell division which produces sex cells and for

reproduction. It involves generating unique daughter cells which is gotten by halving the 46 chromosomes to become 23 chromosomes.

Read more on https://brainly.com/question/19221219

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:

Explain why the chemical equation for photosynthesis is a simplified representation of the process. How is the equation accurate? How is it inaccurate?

Answers

Answer:

The equation shows the general reactants and products of the process. However, it does not show intermediate steps. For example, carbon dioxide and water do not actually react with each other.

Explanation:

The equation is representing the general reactants and products of the process. But, it does not express the intermediate steps. For example, carbon dioxide and water do not actually react with each other.

What is photosynthesis reaction?

The procedures by which chlorophyll bearing organisms and certain other microbes transforms sunlight to chemical energy is renowned as photosynthesis.

Light energy is grasped and utilized by green plants in the process of photosynthesis to efficiently convert, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Plants grab these carbon dioxide as well as water from either the environment or soil during photosynthesis.

Water is oxidized within the plant cell, which means it loses electrons, whereas carbon dioxide is reduced, which means it gains electrons. This converts water to oxygen and carbon dioxide to glucose.

The equation represents the process's broad sense reactants and products. It does not, however, convey the intermediate steps. Carbon dioxide and water, for example, don't really actually react with each other.

Thus, that's why the equation is perhaps not accurate.

For more details regarding photosynthesis, visit:

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Your question seems incomplete, the complete question perhaps is:

"Explain why the chemical equation for photosynthesis (below) is a highly simplified representation of the process. How is the equation accurate? How is it inaccurate?​

6CO2 + 6H2O-----> C6H12O6 + 6O2

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:

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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

Help please, I want the answer

Answers

Answer:yes

Explanation:

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

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.

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.

HELPPPPP PLEASEEEEE!!!

Answers

What are you supposed to do ! Maybe I can help
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