Question 1
- Name any two biological factors influencing agriculture
- State any three (3) importance of sugar to the economy of Kenya.
Answer
-
- Weeds and parasitic plants.
- Pests/fungi/diseases. - - Used as sweetener for a whole range of foods and beverages.
- Used in the manufacture of sweets, chocolates. Spirits, soft drinks and juices.
- Used as a sweetener of syrup in the food canning industry.
- Brown course sugar and molasses are used in the manufacture of local brews.
- Molasses used as a sweetener for livestock feeds.
- Molasses used in the manufacture of ethanol acetone and ethylacetate.
- Filter cake from filtration process during manufacture of sugar is used as manure in the fields near the factory.
Question 2
- State two demerits of solar energy
- State three effects of energy crisis in the developing countries
Answer
-
i) Cannot be stored for future use.
ii) Equipment is generally expensive. -
- Spend more money on importation of petroleum instead of other sectors.
- High inflation rate on their citizens.
- Slows down general development.
Question 3
- Identify any three natural habitats for wild animals.
- State three Problems that inhibit wildlife conservation in Kenya today
Answer
-
- Savanna Grasslands.
- Forests.
- Lakes. -
- Form the basis of tourism industry.
- Forms catchment area for rivers.
- Provides fuel, timber etc. -
- Poaching of wild animals
- Human encroachment to game parks and reserves.
- Insecurity in certain game parks.
- Overpopulation of animals.
Question 4
- Distinguish between discrete and continuous data
- State any three sources of statistical data.
- Give the name of the chart on which data on wind direction is recorded.
Answer
- - Discrete data are statistics which are given in whole numbers e.g. 16, 35, 20.Continuous data are statistics which are given in any value including fractions and decimals e.g. 1.38, ½ , 0.219
-
- Places,
- People, - - Wind rose.
Question 5
List any three (3) minerals mined in the Rift valley province of Kenya.
Answer
i) Flourspar
ii) Soda ash.
iii) carbondioxide.
iv) Gold
ii) Soda ash.
iii) carbondioxide.
iv) Gold