Ch4 Sustainable Management of Water

The overflow of a large amount of water onto what is normally dry land is the definition for which geographical phenomenon?

• Drought

• Earthquake

• Floods

• Tsunami

River floods are typically caused by:

• Concrete surfaces

• Meltwater

• Rapidly rising water level

• Sustained heavy rainfall

Which of the following is not a characteristic of a drought?

• Area becoming drier than normal

• Lack of water to replenish water stores

• Long period of little or no rainfall

• Short duration of about a week

River ecosystem refers to the community of plants and animals found in rivers that

List the four types of water usage.

Water used for irrigation is for which type of purpose?

• Agriculture

• Domestic

• Industry

• Recreation

Which of the following is not an example of water used for industrial purposes?

• Water for cooling machineries

• Water used as cleaning agent in wafer fabrication

• Water used in the generation of electricity

• Water used to fill swimming pool

Which of the following is not a negative impact of excessive fertilizers in water body?

• Additional nutrients for algae to grow rapidly

• Additional nutrients for aquatic animals to grow strong

• Algae dies and decomposes, taking up oxygen

• Lesser oxygen in remains in the water causing aquatic animals to die

Which of the following are examples of water pollution

• Growing aquatic plants which increases the oxygen level of a water body

• Litter and garbage choking animals who mistaken them as food

• Oil spill blocking off sunlight from entering the sea

• Toxic chemicals released causing animals to be poisoned

Which of the following does not improve water quality?

• Dumping refuse, garbage, sawdust and timber into secluded rivers

• Implementing laws to prevent wastewater released into water bodies

• Imposing fines on industries who pollute water bodies

• Removal of algae from water surface