Question 1
- Show how Geography is related to Chemistry
-
The diagram below shows the interrelationship between Geography and other disciplines.
(i) Identify the disciplines marked X and Y.
(ii) Name the subject marked Z.
Answer
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- Geography applies chemistry to study the chemical composition of rocks/soil
- Geography use chemistry to explain chemical changes that take place in rocks/soils -
X – Physiogeography
Y – Economic geography
Z – Demography
Question 2
- Give the forces responsible for the earth’s shape.
- State three effects of revolution of the earth.
Answer
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- Centripetal force
- Centrifrigal force -
- Revolution causes the four seasons.
- Revolution causes changes in the position of the midday sun at different times of the year.
- Revolution causes luna eclipse
Question 3
Use the diagram below to answer the question below:
Describe how the type of rainfall shown above is formed.
Answer
- Water in the sea/lake is heated intensely by solar radiation
- Maximum heating occurs in the afternoon
- Moisture taken air above the water surface rises in convectional currents
- As the warm air rises it is cooled
- The moisture laden air condenses at high altitudes
- The condensed water vapour forms cumulo-mimbus clouds with time.
- The clouds give rise to heavy/torrential rain accompanied by thunder and lighting and sometimes hail stones known as convectional rainfall.
- Maximum heating occurs in the afternoon
- Moisture taken air above the water surface rises in convectional currents
- As the warm air rises it is cooled
- The moisture laden air condenses at high altitudes
- The condensed water vapour forms cumulo-mimbus clouds with time.
- The clouds give rise to heavy/torrential rain accompanied by thunder and lighting and sometimes hail stones known as convectional rainfall.
Question 4
- Apart from gravitative pressure, give two other natural causes of earthquakes
- State three effects of earthquakes on human environment
Answer
-
- Tectonic plate movement
- Isostatic adjustment
- Energy release in the mantle -
- Earthquake occurring in densely settled areas may cause collapsing of buildings and loss of human life.
- Earthquakes occurring in oceans may cause Tsunamis causing flooding in lowlying coastal areas damaging property and loss of life.
- Earthquake may lead to occurrence of landslides damaging buildings/destroying agricultural land.
Question 5
Describe processes leading to the formation of drumlins.
Answer
- Mass of ice moves in the lowlands
- The ice this out as it melts
- The ice stops moving and deposits the boulders, clay beneath it.
- Ice abrasion and plucking reshapes the boulder day into rounded hills.
- Abrasion smoothens the upstream side of a hill forming rounded egg-shaped or elongated hills known as dmm/ms
- The ice this out as it melts
- The ice stops moving and deposits the boulders, clay beneath it.
- Ice abrasion and plucking reshapes the boulder day into rounded hills.
- Abrasion smoothens the upstream side of a hill forming rounded egg-shaped or elongated hills known as dmm/ms