<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.
The new Kiowa and Plains Apache homeland lay in the southwestern plains adjacent to the Arkansas River in southeastern Colorado and western Kansas and the Red River drainage of the Texas Panhandle and western Oklahoma.
Hope this helps; have a great day!
Drought and desertification are closely related phenomena. Persisting over months or years, drought can affect large areas and may have serious environmental, social and economic impacts. While drought is a natural phenomenon, whose impacts can be exacerbated by human activities that are not adapted to the local climate, land degradation is the process of turning fertile land into less or non-productive land. In extreme cases in drylands this is called desertification. Land degradation and desertification are complex phenomena driven by un-adapted human activity in combination with land and climatic constraints. Inappropriate land use, such as monocultures, and unsustainable land management practices, such as deforestation, unsuitable agricultural practices and overexploitation of water resources), can cause land degradation that can be further aggravated by drought.
Answer: 
Explanation:
The Tropic of Cancer is one of the parallels (imaginary line around the Earth parallel to the equator) located in the northern hemisphere (currently its latitude is 
).
It is called "Cancer" because a long time ago, when the summer solstice occurred in the northern hemisphere (on June 20th or 21st), the Sun was in the constellation Cancer (the crab).
Now, if we were just in the North Pole, Polaris would by exactly over our heads (
over the horizon), but as we go south and find the Tropic of Cancer parallel, Polaris altitude will be approximately at an angle of over the horizon.
Hence, the altitude of Polaris measured by an observer at the Tropic of Cancer is .
