Answer:
Viscosity of Magmas
Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the magma).
Explanation:
Lava plateaus is formed by highly fluid (runny) basaltic lava during numerous successive eruptions through numerous vents without violent explosions (quiet eruptions). These eruptions are quiet because of low vicosity are of mafic lava, so that it is very fluid and contains a small amount of trapped gases.
According to
https://rainforests.mongabay.com/deforestation/archive
Deforestation rates in Indonesia is much higher than in Papau New Guinea. This is likely because of Indonesia's overall corruption and Palm Tree Plantations.
Deforestation rates in Indonesia have an annual average increase of %1.61.
By comparison, Papua New guineas annual average deforestation rate is %0.44.
Papua New Guineas low deforestation rate is likely due to conservation programs such as the tree kangaroo conservation program and the YUS Conservation Area.
Hope this helps
Answer:
The photosphere, the chromosphere and the ionosphere.
Explanation:
You did not list any layers in your question, however, the sun is composed of mainly 6 layers;
- The core
- The radiative zone
- The convective zone
- The photosphere
- The chromosphere
- The corona
The photosphere is the visible layer of the sun, however, it is very bright even when viewed with a telescope. A filter has to be used to reduce the intensity of the light. This filter is called a myler filter. It is added to the lens of the telescope. Using this, the photosphere can be seen using a telescope.
The chromosphere is an irregular layer above the photosphere. Due to the extremly high temperature, hydrogen emits light which gives off a reddish color. This is known as the H-alpha emmision. Therefore, to see this layer with a telescope, a special filter have to be fitted to the lens of the telescope. This filter is called the hydrogen alpha filter.
The corona is the outermost part of the sun atmosphere, however, it is hidden by the sun's bright surface. It can be seen during a total eclipse. This is when the moon covers the bright photosphere.
The blinds have pulleys. To pull them up and down.
