Question 1
- Give three reasons of studying Geography
- State two weaknesses of nebular cloud theory
Answer
- - We learn and explain the origin of earth, the solar system and the internal structure of the earth.
- Helps learners develop the skill of observing, reading analyzing and interpreting data
- Helps learners understand the ways of life of other people and they interact with the environment - - The origin of the cloud of dust is not known
- The cause of the nebula’s rotation is not known
Question 2
- Differentiate between winter and summer solstice
- Stat three effects of rotation of the earth
Answer
- Winter solstice - On June 21st sun is overhead at the trophic of cancer hence summer solstice in Northern Hemisphere and in Southern Hemisphere its winter Solstice.
Summer solstice - On 22nd December sun is overhead at the trophic of capricon a time for summer solstice in southern Hemisphere while in North Hemisphere its time for winter solstice. - - causes day and night
- causes a difference n time between longitudes
- causes rise and fall of sea tides
- causes a deflection of winds and ocean currents
Question 3
- Differentiate between the terms plate tectonics and tectonic plates
- Identify three activities that take place along extension boundaries
Answer
- Plate tectonics - this is a theory that suggests that the earth comprises of is a series of semi rigid blocks of lands that move relative to each other and are separate by distinct boundaries.
Tectonic plates - are semi-rigid blocks of land that hold the continents and are separated by distinct boundaries - - Vulcanicity
- Earthquakes
- Faulting
Question 4
- List two elements of weather
- Name three processes through which the atmosphere is heated
Answer
- - Temperature
- Air pressure
- Precipitation - - Radiation
- Convention
- Conduction
Question 5
- State three features of wind deposition
- State two factors that influence wind transportation in the desert
Answer
- - Sand dunes
- Loess
- Drags - 1. Speed and force of wind - the greater the force of wind the more load it can carryRadiation
2. Amount of load and nature - small and light particles will be carried for longer distancesConvention
3. Sudden change of weather like showers causes the wind to drop its load