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
amm1812
3 years ago
11

Mafic lava tends to have low silica content. Based on this, which of the following statements about mafic lava is most likely tr

ue?
A. It contains fewer volatile gases.
B. It has higher viscosity.
C. It flows slowly.
D. It contains more volatile gases.
Biology
2 answers:
sashaice [31]3 years ago
8 0

Answer:

A. It contains fewer volatile gases.

Explanation:

Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.

The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.

What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.

The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.

The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.

DaniilM [7]3 years ago
7 0

Answer:

A. It contains fewer volatile gases

Explanation:

The mafic lava is a lava type that has low viscosity. The reason for that is its composition, being very rich in magnesium and iron. Because this type of lava is low in viscosity, it is unable to contain the majority of the gases and water in it, as they find it relatively easy to ''escape'' from it. That results in much calmer eruptions of the volcanoes that produce mafic magma, with explosions almost never occurring, and even if they do they are very small.

You might be interested in
Explain E.O. Wilson's theory of Island Biogeography as it applies to environments other than islands physically
fgiga [73]

Answer:

The theory of E.O. Wilson's theory of Island Biogeography was originally developed as island biogeography, to explain species richness of actual islands, surrounded by water.

It proposes that the number of species found in an undisturbed environment is determined by immigration and emigration. According to him, the species richness will be the same if this island will have an equal number of the immigration and extinction or emigration of species.

3 0
3 years ago
Please help me with question 15 it’s due right now
katen-ka-za [31]

Answer:

100%

Explanation:

6 0
2 years ago
How many molecules of dna would result from one molecule after five cycles of pcra)10b)14c)5d)32
Sergio039 [100]

i say <u>D.) 32</u> is the answer.

5 0
3 years ago
Which of these choices is an advantage of the Endangered Species Act?
Sindrei [870]

The correct answer is option C, that is, saves species from extinction.  

The Endangered Species Act is one of the most essential and efficient environmental laws of America. It signifies a willingness by the people of America to work in harmony and restore and protect the species most vulnerable of getting disappeared forever.  

The act offers common sense, balanced solutions for the landowners, government agencies, and concerned citizens to preserve the endangered wildlife and their habitats. It includes three prime elements:  

1. Inhibiting the listed species from getting harmed or killed

2. Developing plans to restore healthy populations

3. Safeguarding habitat important to these species survival.  


3 0
3 years ago
Read 2 more answers
The result of the following cross indicates the orange eyes are _____ black eyes. Two aliens of the P generation are crossed. Bo
Dima020 [189]

Answer:

<h2>Recessive to </h2>

Explanation:

1. As given here, both parents are black, and their 247 progeny out of 333 are black, it  clearly indicates that 3/4 progeny is parental phenotype and 1/4 is different type.

2. This clearly show that both parents are heretogyzous, one allele is dominant and one is recessive.

3. Here black is dominant over blue.

4. Dominant allele express them-self in dominant homogyzous as well as heterogyzous condition.

5 0
3 years ago
Other questions:
  • The tibia and fibula articulate with what tarsal bone to form the ankle joint?
    14·1 answer
  • Which of the following aquatic environments would not freeze in the winter
    11·1 answer
  • Fill in the blank with the best possible choice: the arac gene ___________. key points are underlined. a. will be transcribed by
    6·1 answer
  • you are working as a medic at a gymnastics competition, and one of the gymnasts has a bad landing after a vault, injuring her le
    14·1 answer
  • Pls help! <br>What is the answer?
    10·1 answer
  • How does a population reach carrying capacity?Give examples.
    13·1 answer
  • Jus got my account deleted that had 2000 points and 15 brainliests pog
    9·2 answers
  • Scientist use data to make high resolution storm surges maps storm surges cause major flooding in the aftermath of hurricane. Ho
    6·1 answer
  • Doctors found out that you are suffering from a serious disease that can only be cured using stem cell therapy. The doctors expl
    11·1 answer
  • You've just attended a football game with your friend Kaylee, who has Type I diabetes mellitus. Though Kaylee drank only one bee
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!