Explanation

(a)(i)   Difference between intensive system and extensive system of livestock management

Intensive system of livestock management is a system in which livestock are kept under confinement at a high stocking rate with adequate provision for housing, feeding and health care
Whereas
Extensive system of livestock management is a system in which livestock are kept at low stocking rate with little or no provision for housing, feeding and health care.

(ii) Disadvantages of keeping livestock on free range system

• Exposes animals to infectious diseases.
• Exposes animals to predators.
• Difficulty in keeping records for individual animals.
• Exposes animals to pests.
• Feeding cannot be controlled.
• Breeding programme cannot be planned.
• Exposes animals to thieves.
• Animals dissipate energy in search of food and water.
• Characterized by slow growth rate and productivity.
• Exposes animals to environmental hazards and accidents.

(c) Ways in which ornamental plants are important

• Source of foreign exchange
• Source of income
• Source of employment
• Used to beautify the environment
• Used in landscaping
• Promote tourism
• Serve as wind break
• Some have medicinal value
• Used to demarcate boundaries
• Used for marking avenues
• Used for educational/research purposes
• Used for visual screening or concealing views to provide privacy
• Some ornamental plants are edible/used as food for humans/animals
• Leguminous ornamental plants fix nitrogen into the soil
• Some ornamental plants produce fragrance which give pleasure to people
• Help to reduce night blur on major roads to prevent accidents in the night
• Used in bouquets, garlands and wreaths
• The flowers of some ornamental plants are used in the preparation of dyes

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