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Anuta_ua [19.1K]
3 years ago
13

An igneous rock that contains mostly pyroxene and olivine has ?

Biology
2 answers:
Masteriza [31]3 years ago
5 0
It sounds like you may be looking for Peridotite, which is a type of ultramafic igneous rock that contain olivine as their main mineral in combination with <span>pyroxenes and amphiboles. I hope this helps! </span>
leonid [27]3 years ago
4 0

Answer:

Ultrabasic rocks like mafic rocks

Explanation:

  • Usually, have 45% of silica and mostly are mafic rocks contain mostly minerals like pyroxene and olivines example of peridotite, these minerals make up 90% of the volume of igneous rocks and thus are easy to identify.
  • Being rich in iron and magnesium and thus contain abundant calcium-rich feldspar thus they being dark o black in color.  
  • The presence of this pyroxene and olivine has also found in extraterrestrial rocks like the lunar rocks and often have been seen in a combination with minerals like <u>hornblende</u>.
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Answer:

Nitrogen cycle works through various stages like, nitrogen fixation, nitrification, assimilation, ammonification, denitrification etc. It is a building block for protein and DNA

Explanation:

Nitrogen is an element abundantly found in the atmosphere, also its building block for proteins as well as nucleic acid i.e. DNA formation. In nitrogen cycle , the nitrogen is being prepared from inert nitrogen.  The nitrogen cycle has several processes like nitrogen fixation, in this the inert nitrogen is being converted to organic nitrogen with the help of certain micro-organism.

Nitrification, plants cannot absorb directly nitrogen so bacteria help the plants to convert the nitrogen into ammonia form in this stage. Assimilation, another stage in which plants starts absorbing various forms of nitrogen from the soil.i.e. nitrate, nitrite and ammonium. Ammonification, here plants and animals have nitrogen in there body after death various microbes help in decomposition in this stage. Denitrification, in this stage the return back of nitrogen takes place.

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3 years ago
Women gives birth to a baby boy. A few years later she gives birth to another baby boy. What is the probability that her third c
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Answer:

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Explanation:

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Here, the probability of the child to be a girl would be 50 % or 1 out of 2.

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Also each child birth is an independent event, so the probability that the one results will occur do not depend on the previous births.

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Answer:

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Explanation:

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3 years ago
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