1- Maize Mixed Farming System
2- Irrigated Farming System
3- Rice Tree Crop Farming System
Answer:
The answer is the Geography Hypothesis.
Explanation:
The geography hypothesis holds that the differences in prosperity that are found around the world are due in large part to forces of nature, like the differences in geography, climate, and ecology that are evident in different regions of the world. The geography hypothesis emphasizes how the natural environment can explain why some nations are more prosperous than others. In contrast, the institutions hypothesis emphasizes the influences that are made and caused by humans. Human poverty is largely man-made in the institutions view.
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.
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