Identify three sources of renewable energy.

KCSE Geography Paper 2 2013 Section B Question 9.

(a)Identify three sources of renewable energy.

• Wind
• Sun
• Water
• Tides / waves
• Geothermal steam
• Biomass
• Wood/trees
• Drought animals

​(b)(i)Name three main hydroelectric power stations along the river Tana.

• Masinga
• Kamburu
• Gitaru
• Kindaruma
• Kiambere

​(ii)Apart from providing electric power, state four other benefits of the dams along the River Tana.

• The reservoirs provide water for domestic use /industial use/irrigation.
• The dams / reservoirs are tourist attractions.
• The reservoirs are fresh water fisheries.
• The reservoirs modify local climate.
• The dams act as bridges across the river.
• The dams and reservoirs control floods downsteam.

​(iii)Identify two problems that affect the production of power along River Tana.

• Fluctuations of water levels in the reservoirss.
• Inadequate capital for maintenance / high cost of dredging/expansion.
• Silting of the reservoirs.

​(c)Explain four measures the Government of Kenya has taken to conserve energy.

• Encouraging people to use renewable sources in order to reduce the overreliance of fossil fuels.
• Developing energy saving technologies in order to reduce the high consumption of energy.
• Enforcing the legislation against indiscriminate cutting down of trees for fuel thus conserving existing resources.
• Educating the public on the careful use of energy in order to save it.
• Progress taxation on energy consumption in order to discourage the misuse of energy.
• Proper planning of road networks in urban areas to reduce traffic jam hence saving on fuel consumption.
• Encouraging the use of public transport/walking/cycling/railway in order to reduce the number of vehicles on the roads thus reducing energy consumption.
•  Discouraging importation of high fuel consumption vehicles to reduce amount of fuel used.
• Encouraging afforestation/reafforestation for continuous supply of wood fuel.

​(d)Some students carried out a field study on sources of energy by sampling the households around their school.
(i)Identify two sampling techniques the students may have used during the study.

• Stratified
• Random
• Systematic

​(ii)Give three advantages of sampling the households for the study.

• To save on time.
• To reduce bias.
• To allow for detailed study.
• To reduce cost. 

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