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3 years ago

What geological feature is located below an active volcano

Biology

2 answers:

VMariaS [17]3 years ago

5 0

Answer:

The geological features that are usually present below an active volcano are as follow-

1) Mantle plume- This is the region containing a huge concentration of magma rising from the mantle-core boundary. This exerts huge pressure towards the surface of the earth thereby lifting the land and subsequently forms a volcano.

2) Magma chamber- These are chambers that are comprised of magma bodies and with the increasing pressure and temperature, they tend to rise up and form volcanoes.

3) D(i)ke- This are vein-like structures within which the magma moves upward with increasing force. They cross-cuts the country rocks.

4) Sills- This is a parallel vein-like structure along which magma flows and they are parallel to the country rocks. They are not that frequently found like d(i)kes.

frez [133]3 years ago

3 0

Answer:

Below an active volcano lies magma chamber. Magma is the liquid which makes the lava. It’s located within the crust of the earth.

Explanation:

Magma chambers lies within the crust of the earth. Volcano is made up of magma which has come in contact with water. Upon contact with water, it erupts.

Once the volcano erupts it can destroy all forms of life surrounding it. The parts where the lava has fallen are no more capable of inhibiting.

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2 years ago

The methodology used to discover the pattern of evolution among an assemblage of species is based on the assumption of descent w

Shtirlitz [24]

Answer:

Option-(True): The methodology used to discover the pattern of evolution among an assemblage of species is based on the assumption of descent with modification.

Explanation:

Evolution and patterns of evolution:

The phenomenon of evolution is very interesting as it can any two different species back to a common origin or ancestors. While the process of evolution does not occur in few years or centuries, as it takes millions of years for any specie to evolve from a less developed form of body or any system to a more complex or advance form.

Now, evolution occurs in many forms or patterns. As it species can originate from a single ancestor or descendant, while the evolution can occur inside the organism may occur in different patterns. These patterns are as follows:

Divergent Evolution:The divergent evolution occurs when the species originated from a single ancestor or descendant results in different forms of organisms. As it brings diversity among the species belonging to same ancestors or origin. For example, the humans and apes.
Convergent Evolution: The convergent evolution takes place inside the number of species when they are originated from the different species but they share the same medium or region to live in and share some of the similar resources between them. For example, The whales are mammals but they too live with the fish species inside the water.
Parallel Evolution:When the evolved organisms or species are related to the different ancestors or descendants, as they share they do not share the same niche(way of life), as the species are unrelated to one another.

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3 years ago

The total amount of chemical energy produced by autotrophs, such as plants and phytoplankton, is called gross primary production

natima [27]

Answer:

This question lacks options, the options are:

a) Negative primary production

b) Net primary production

c) Secondary production

d) Negative secondary production

e) Positive primary production

The correct answer is b.

The total amount of chemical energy produced by autotrophs, such as plants and phytoplankton, is called gross primary production. The energy that remains after plants use some of the gross primary production to fuel their own metabolism is known as net primary production.

Explanation:

Net Primary Production (NPP) is the value that results from the difference between gross production and respiration of the primary producers themselves. It manifests as growth and / or reproduction. It represents the matter and energy available for the next trophic level, that is, the net primary production is what is left after subtracting the energy that plants use for their metabolism or maintenance (such as breathing, tissue construction and reproduction).

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