<u>Answer: </u>
- <em>The world in spatial terms.
</em>
- <em>Places and regions.
</em>
- <em>Physical systems.
</em>
- <em>Environment and Society & Uses of geography.</em>
<u>Explanation</u>:
<u><em>The world in spatial terms</em></u><u><em>: </em></u>The world in spatial terms deals with where things are positioned in the world, including absolute and relative location. Places and regions study the physical and human features of the place being studied from climate to language to religion to government.
<u><em>Places and regions
</em></u><u><em>: </em></u>A place in space that is different from other spaces. Regions are areas defined by unifying physical and /or human characteristics. A region is a space that shares one or more qualities or characteristics & a basic unit of study in geography.
<u><em>Physical systems:</em></u><em> </em>In physics, a physical system is a portion of the physical universe chosen for analysis. Everything outside the system is known as the environment. The environment is ignored except for its effects on the system.
<u><em>Human systems: </em></u>Movement is how things move from place to place. (This can be movement of people, ideas and/or beliefs, and goods.) and describes how people have shaped our world.
<u><em>Environment and Society: </em></u>The Environment and Society specialization within the Geography major provides students with an understanding of the reciprocal relationships between social and environmental processes. Environmental geographers are concerned with how human beings use the earth and how humans impact the environments in which they live.
<u><em>Uses Of Geography: </em></u> The uses of geography is the study of the practical side of the subject. It concerns understanding how to apply geography to explain the past and help us make decisions today.
Among all the countries that you mentioned, Gabon is the country that receives the most rainfall.
They mostly had resources , and locations in common.
Recommended rates of potash for grazed grass are 60kg/ha and 30kg/ha of K2O for soil index 0 and 1 respectively. For soils with higher soil fertility levels no potash required.
Very large quantities of potash are removed in grass silage which must be replaced to maintain soil fertility and yield potential. The following is guide to typical potash offtakes from multi-cut silage systems.Low soil magnesium levels will affect grass yield as well as mineral balance in the animal. Apply 50-100 kg/ha MgO every three to four years at Mg index 0. Yield response is less certain at index 1 but magnesium application is justified in terms of insurance for grass yield and mineral balance for the animal, to maintain a soil magnesium index of 2.
Where lime is required and Mg levels are 0 and 1, use magnesian limestone as the most cost effective magnesium source. Where pH is satisfactory, specific magnesium fertilisers (see table below) should be used for soil improvement. Use water soluble forms of magnesium where rapid plant uptake is required.
