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GEOGRAPHY OBJ
01-10: DABCDCCEBE
11-20: CADECEBCAD
21-30: DACDDEBDAA
31-40: ADDBDDCCBE
41-50: BACDADDEEE
51-60: BBBAEDBBDC
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(1)
(1c)
(i)Fishing : Presence of river mayo kurndul that stretches from north of the map area to South of the mapped areas
(ii) Animal grazing : Because of the presence of scraps plants and veterinary clinic
(iii)Lumbering: presence of heavy forest
(iv)Religion activities: Presence of church and mosque
(1d)
(i) The major River in the mapped area is River mayo kurndul
(ii) There are irregular branches that looks like a tree to form a Radial drainage pattern
(iii)The smaller River flow into the majo river
(iv)Around the South East of the mapped area is liable to flood which can be used for rice cultivation
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(2a)
(i) Crust: The outermost solid layer, ranging in thickness from 5-70 km. It’s composed of rocks and minerals, and is where we live.
(ii) Mantle: The thick layer beneath the crust, extending from 35 km to 2,900 km depth. It’s made up of hot, viscous rock that flows slowly over time.
(iii) Core: The central part of the Earth, divided into a solid inner core (5,150-6,371 km depth) and a liquid outer core (2,890-5,150 km depth). The core is made of iron and nickel, and generates the Earth’s magnetic field.
(2b)
(i) Supports Life: The crust provides a habitat for humans, animals, and plants, offering essential resources like air, water, and nutrients.
(ii) Natural Resources: The crust is rich in minerals, metals, and energy sources (fossil fuels), which are extracted and used for various purposes.
(iii) Regulates Climate: The crust plays a crucial role in the Earth’s carbon cycle, storing carbon dioxide and influencing global temperatures.
(iv) Geological Activity: The crust is dynamic, with processes like plate tectonics shaping our landscape, creating mountains, volcanoes, and earthquakes.
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(3ai)
Mode Of Formation: Igneous rocks are formed by the cooling and solidification of molten rocks called magma, ejected from beneath the earth’s crust. The magma which results from high temperature and pressure beneath the earth, forces itself towards the earth’s surface through cracks. As the magma moves towards the surface, it comes in contact with lower temperature, hence it cools and solidifies to form Igneous Rocks. A very good example of them are Basalt and Granite.
(3aii)
Characteristics:
(i) Igneous rocks are typically hard and dense
(ii) They often have a glassy appearance
(iii) May contain gas bubbles or mineral crystals
(iv) Can be rich in minerals like quartz, feldspar, and mica
(3b)
(i) Igneous rocks like granite and basalt are commonly used as construction materials in buildings, monuments, and countertops due to their durability and strength.
(ii) Crushed igneous rocks such as basalt and granite are used as aggregates in road construction for their hardness and resistance to wear and tear.
(iii) Some igneous rocks, like obsidian and pumice, are used in jewelry making due to their unique colors and textures.
(iv) Igneous rocks like lava rock are used in landscaping for decorative purposes in gardens, paths, and water features due to their natural beauty and low maintenance.
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(4a)
Climate refers to the long-term average atmospheric conditions in a particular region, including temperature, humidity, precipitation, wind patterns, and other meteorological factors.
(4bi) Types of Rainfall
Convectional Rainfall:
Explanation:
-Warm air rises, creating an area of low pressure near the ground
-As the air rises, it cools and condenses, forming clouds
-Water droplets in the clouds become too heavy to remain suspended, falling to the ground as precipitation
(4bii)
Cyclonic Rainfall:
Explanation:
-A low-pressure system forms, and air is drawn in from surrounding areas
-As the air rises, it cools and condenses, forming clouds
-Water droplets in the clouds become too heavy to remain suspended, falling to the ground as precipitation
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(6ai)
River Capture:
River capture, also known as stream piracy, occurs when a river or stream flows into a larger river or lake, and its water is diverted into the larger water body, often due to tectonic activity, erosion, or changes in the landscape.
(6aii)
River Rejuvenation:
River rejuvenation occurs when a river’s flow is increased or restored, often due to tectonic uplift, changes in precipitation, or human activities like dam removal. This can lead to increased erosion, sediment transport, and changes in the river’s channel and surrounding landscape.
(6b)
(i) Traction: The process by which a river carries large particles, like boulders and rocks, by rolling or dragging them along the river bed.
(ii) Suspension: The process by which a river carries smaller particles, like sand and silt, by suspending them in the water column, keeping them from settling to the bottom.
(iii) Solution: The process by which a river carries dissolved minerals and chemicals, like calcium and iron, by dissolving them in the water, often from surrounding rocks and soil.
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(7a)
Environmental resources refer to the natural resources that surround us, including air, water, land, and living organisms, which provide benefits and services essential for human well-being and economic development.
(7b)
(i) Water
(ii) Soil
(iii) Air
(iv) Forests
(7c)
Renewable resources are natural resources that can be replenished over time through natural processes, such as growth, replenishment, or regeneration. These resources are sustainable and can be managed to meet present and future needs without depleting their availability.
(7d)
(i) Solar energy
(ii) Wind energy
(iii) Hydro energy (from rivers, lakes, and oceans)
(iv) Biomass (from plants, trees, and organic waste)
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(8a)
(i) Remote Sensing: Data collected from satellites, drones, or aircraft to gather information about the Earth’s surface, such as land cover, vegetation, and urban development.
(ii) Global Positioning System (GPS): Satellite-based navigation system that provides precise location information used for mapping and data collection.
(iii) Aerial Photography: Images captured from aircraft or drones to create detailed maps, analyze landscapes, and monitor changes over time.
(iv) Ground Surveys: Data collected on-site using GPS devices, total stations, or other surveying equipment to gather accurate geographic information.
(8b)
(i) Urban planning: Transportation management, infrastructure development
(ii) Environmental management: Natural resource management, conservation, environmental monitoring
(iii) Emergency response: Disaster response, emergency management, risk assessment
(iv) Health and epidemiology: Disease surveillance, health research, epidemiological studies
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