<u>Answer:
</u>
The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
</u>
- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
1 to C, 2 to E, 3 to A, 4 to B, 5 to D
The North Island <span>is not a state/territory of Australia. "The North Island" is actually Iceland.</span>
Answer:
E. Mineral content
Explanation:
Viscosity is an internal property of a fluid that offers resistance to flow, the nature of volcanic eruptions is highly dependent on magma viscosity and also on dissolved gas content (dissolved gases become trapped by thick magma and the magma chamber begins to build pressure).
The viscosity of magma is controlled by the size of the molecules that comprise it.
<em>Felsic lava contains elements of small size (sodium and aluminum), these elements form polymers and large crystalline macromolecules like silica, the more extensive silicate chain molecules the more viscous the magma becomes, this happens because larger molecules have stronger intermolecular bonds preventing movement and spreading. </em>
Mafic and ultramafic lava, on the other hand, have lower viscosities, also contain lower quantities of silica and aluminum and are rich in magnesium oxide, which does not form large molecular structures, therefore lava flows smoothly, unrestricted by intermolecular forces.
I hope you find this information useful and interesting! Good luck!
Answer:
Actividades industriales.
Explanation:
La industria es la parte de la economía que produce bienes y proporciona servicios, a partir de la modificación de las materias primas obtenidas de la naturaleza.
La industria se puede dividir en cuatro partes. La primera parte son las industrias donde los recursos naturales se convierten en productos como la minería, la tala y la agricultura. La segunda parte son las industrias en las que las materias primas se convierten en productos, como la automoción y la siderurgia. La tercera parte son las industrias de servicios como el comercio y la banca. La cuarta parte es la investigación, el diseño y el desarrollo que pueden conducir al cambio y al progreso tecnológico. Los países en desarrollo suelen tener economías basadas más en la primera y segunda partes, mientras que en los países industrializados se pone más énfasis en la tercera y cuarta partes que en los países en desarrollo.