answer.
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
2 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]2 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]2 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
Which statements describe proteins? Select three options.
andre [41]

<u>Complete Question:</u>

Which statements describe proteins? Check all that apply.

A.) Proteins are created from the code in DNA.

B.) Proteins are synthesized in the nucleus of a cell.

C.) DNA and RNA are proteins.

D.) Amino acids are the building blocks of proteins.

E.) Proteins affect the structures and functions of living things.

F.) The shape and the function of a protein are not related.

<u>Correct Option:</u>

The statements which describe proteins are as follows:

A.) Proteins are created from the code in DNA.

D.) Amino acids are the building blocks of proteins.

E.) Proteins affect the structures and functions of living things.

<u>Explanation:</u>

Transcription is the method of RNA molecule creation from DNA. The translation is the mechanism by which the protein material is produced from the RNA molecule. Originally, protein forming data is contained in the DNA in the context of nucleotide code. The mechanism of translation happens in the cytoplasm and not at the nucleus.

DNA and RNA contain nucleotides and not proteins. Proteins are the alpha amino acid polymers, which serve as the building block of the protein. An individual's phenotype relies on the composition of the protein, and protein determines the composition and phenotypic expression in living organisms. 3D structure of proteins and their work are realized with one another.

6 0
2 years ago
Read 2 more answers
g The greater tubercle of the humerus is analog to the _______________. Group of answer choices lesser tubercle of the humerus l
Mkey [24]

Answer:

greater trochanter of the femur

Explanation:  

Analogous structures refer to those that are similar morphologically and even have a similar function in the organism, but their genetic origin differs.

The origin and embryological development of these organs are not the same.  

Both structures are muscles insertion points or surfaces. These muscles are related to the extremity movement.

7 0
2 years ago
In animal populations, ddt causes _____. in animal populations, ddt causes _____. birth defects tuberculosis sleeping sickness t
frozen [14]

Answer;

-Birth defects

Explanation;

In animals, long-term exposure to DDT can cause death or severe birth defects.

-DDT stands for dichloro-diphenyl-trichloro-ethane. It is an insecticide/pesticide previously used on crops. DDT has an adverse impact on many organisms such as crayfish, fish, shrimp,  and other animals such as mammals.

DDT is slightly to moderately acutely toxic to mammals, including people, if eaten.Animals given potentially fatal doses of DDT develop liver lesions and those given DDT over a long period of time develop liver changes. In these animal populations DDT may cause birth and reproductive defects.

5 0
2 years ago
Some synovial joints contain special crescent-shaped pads that provide additional shock absorption, and provide for a better fit
Ksivusya [100]

Answer:

menisci

Explanation:

Some synovial joints such as that of knees have crescent-shaped pads. These pads are made up of fibrocartilage and are present between the articular surfaces of the bones. These cartilaginous pads are attached to the fibrous capsule and are called articular discs or menisci.  

The function of the menisci is to serve in shock absorption and minimize the wear and tear of the joint. Meniscus also allows the articulating bony surfaces to fit properly and facilitate an adaptable surface for combined movements. Meniscus serves to distribute the weight over a greater contact surface and thereby makes the joint stable. It also spreads the synovial lubricant across the articular surfaces of the joint.

5 0
2 years ago
Which body of water tends to produce single species growth of seagrasses
Blizzard [7]
the northern region body of water
6 0
2 years ago
Other questions:
  • During endocytosis and exocytosis, cells _____. A. take in what they need and expel what they don't need. B. move water in and o
    11·2 answers
  • What are some shared characters among rabbits and perch?
    6·2 answers
  • Vegetation type of drought-resistant grasses also refers to a very dry climate, characteristic of southern russia, ukraine, and
    13·1 answer
  • Identify the characteristics of a virus. Check all that apply. measures 20-300 nanometers grows and reproduces infects all forms
    14·2 answers
  • To be certain that the extract prepared from virulent cells still contained the transforming principle that was present prior to
    7·1 answer
  • Sicle cell disease (SCD) is found in numerous populations whose ancestral homes are in the malaria belt of Africa and Asia. SCD
    9·1 answer
  • A drug designed to inhibit the response of cells to testosterone would almost certainly result in which of the following? a. a d
    8·2 answers
  • If two orange heliodors have a child, what is the probability their child would be red?
    7·1 answer
  • The zebra mussel is originally native to the Black and Caspian Seas of Asia. Zebra mussels were first detected in the Hudson Riv
    6·2 answers
  • On a sunny day at an open market a vendor, Ms. Milly, occasionally sprinkles water on her wilting lettuce. During the day Ms. Mi
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!