1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Travka [436]
3 years ago
7

What condition causes pumice to be so porous

Biology
2 answers:
lozanna [386]3 years ago
5 0
The rapid release of air/ gas bubbles during cooling
marshall27 [118]3 years ago
4 0
When the frothy magma starts to cool, it cools too fast for the atoms to make a crystal structure so it cools with bubbles inside. Because of this, pumice is able to float.
You might be interested in
Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Inte
Ainat [17]

Answer:

Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg Capillary colloid osmotic pressure (OPc) = 25 mmHg Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg. The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

Explanation:

  • Data:

Capillary hydrostatic pressure (HPc) = 30 mmHg

Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg

Capillary colloid osmotic pressure (OPc) = 25 mmHg

Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg

  • Formula Applied :

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient

Hydrostatic pressure gradient = Capillary hydrostatic pressure - Interstitial hydrostatic pressure = 30mmHg - 0 mmHg = 30 mmHg

Oncotic pressure gradient =  Capillary colloid osmotic pressure - Interstitial fluid colloid osmotic pressure =25  - 2 = 23 mmHg

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient = 30 mmHg - 23 mmHg = 7 mmHg.

Hence, The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

3 0
3 years ago
In the context of biological anthropology, the results of a disadvantaged social environment can include one
lorasvet [3.4K]

Answer:

One with poor-quality nutrition.

Explanation:

Anthropology may be defined as the field of biology that mainly includes the study of human behavior, societies and humans. Two different types of anthropology are cultural and social anthropology.

The social environment and its consequences is included and studied in the social anthropology. The disadvantage of social environment in anthropology shows the population with the lack of proper nutrition and people suffers from the malnutrition.

Thus, the answer is one with poor-quality nutrition.

5 0
3 years ago
Atmospheric pressure decreases with increasing _________.
Elena-2011 [213]
With increase in altitude atm pressure decreases... :)
3 0
3 years ago
Where does the Aurora Borealis occur in the layers of the atmosphere?
almond37 [142]
Auroras normally occur in the Earth's thermosphere.
7 0
3 years ago
Which chromosome is involved in Prader Willi and Angelman Syndrome?
shepuryov [24]

Answer:

C.

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the most famous piece of art in the prado museum
    10·1 answer
  • What system does the kidney disease affect
    12·2 answers
  • What are the four main elements found in living things?
    7·1 answer
  • 4. Describe the view if you were to stand in the umbra of a solar eclipse.
    12·1 answer
  • Which is the best definition of conservation biology?
    14·2 answers
  • What group is outside the solar system
    10·1 answer
  • What must happen for a solar eclipse to occur?
    14·2 answers
  • The domestication and breeding of animals to have as pets, livestock on farms, or for work purposes is a form of artificial sele
    10·1 answer
  • The C Horizon contains the parent material for the soil, it is the original material that succession began on
    6·1 answer
  • Please help with this I am not to sure abt this​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!