Floods & Drought Sec 1 Quiz

What is a flash flood?

• A) A slow accumulation of water in low lying areas.

• B) A sudden overflow of water that quickly floods normally dry low lying areas.

• C) Water that seeps slowly into concrete in the city.

• D) A gradual rise in the water table.

Why do flash floods occur?

• A) Due to light rain over a long period of time.

• B) Because of heavy rain over a short period of time that cannot infiltrate into concrete in cities.

• C) Due to melting snow and ice in the spring.

• D) Due to continuous rainfall for several months.

What is a river flood?

• A) A sudden overflow of water in urban areas.

• B) An overflow of an unusual amount of water from nearby rivers onto normally dry land.

• C) A slow rise in water levels due to light rain.

• D) Water that seeps into the ground causing floods.

Why do river floods occur?

• A) Due to heavy rain over a short period of time.

• B) Because of high evaporation rates.

• C) Due to heavy rain over a long period of time or when snow and ice melt in spring.

• D) Due to urbanization and concrete surfaces.

What is a drought?

• A) A period of excessive rainfall.

• B) A long period of time with little to no rainfall over a specific area.

• C) A temporary water shortage.

• D) An overflow of water in dry areas.

Why do droughts occur?

• A) Due to high precipitation over a short period.

• B) Because of low precipitation and high evaporation over a long period.

• C) Due to melting snow and ice.

• D) Because of urbanization.

What can cause the drying up of reservoirs, like the Baoshan No. 2 Reservoir in Taiwan?

• A) Excessive rainfall and flooding.

• B) No typhoons and little rain over the past year.

• C) Continuous snow and ice melt.

• D) Urbanization and industrial activities.

How can the drying up of reservoirs in Taiwan affect the global electronics sector?

• A) It will have no significant impact.

• B) It could be damaging because many products are powered by semiconductors made by Taiwanese companies.

• C) It will lead to increased production of electronics.

• D) It will enhance the availability of water for industrial use.

Can floods and droughts occur in the same place?

• A) Yes, but only in tropical regions.

• B) No, it is not possible for both to occur in the same place.

• C) Yes, floods and droughts can occur in the same place due to varying weather patterns.

• D) No, they are separate events.