Beach and soil erosion

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biology

Edad recomendada: 11 años

5 veces realizada

Creada por

Anjali Neerunjun

Mauricio

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jvrishik

20 de Septiembre de 2024

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Anjali Neerunjun

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Beach and soil erosionVersión en línea Interactive quiz game por Anjali Neerunjun 1 What is soil erosion? a It is the planting of trees. b It takes place when more fertile soil is added. c It takes place when the top fertile soil is removed. d It is the building of terraces along slopes. 2 What may be a cause of soil erosion? a Planting more trees. b Replacing trees which have been uprooted or destroyed. c Building terraces on sloping lands. d Heavy rainfall and strong winds. 3 What is an effect of soil erosion? a The soil becomes more fertile. b The soil that is washed away is deposited at the mouth of rivers and on the sea bed which affects living things in the rivers and the sea. c It reduces the risk of floods. d It becomes more easier to grow crops on such lands. 4 How do we prevent soil erosion? a By planting trees on bare land. b By burning down trees. c By cutting down trees. d By making animals over graze on land. 5 What causes beach erosion? a Sunshine b Drop in sea level. c Rise in sea level. d Coral reefs. 6 What can be done to prevent beach erosion? a By throwing trash on the beach. b Trees should be cut down on the beach. c Using sand from the beach for construction of houses. d Preventing the washing away of sands by setting barriers. (Rocks) 7 What will happen if we do not try to reduce beach erosion? a More sand and soil erosion will occur. b There will be more trees on the beach. c Coastal areas will not be affected. d The beach will look more beautiful. 8 What is an example of a threat to marine life? a Keeping the lagoon clean. b Sewage discharge into the lagoon. c A man catching a fish in the lagoon. d A person swimming in the lagoon. 9 What measure can we take to reduce threats to marine life? a Throw more trash in the lagoon. b Allowing animal wastes to get into rivers. c Sewage has to be treated before discharge in the lagoon. d Over-spraying of pesticides. 10 What will happen if we do not protect our marine life? a There will be more fish in the sea. b Many sea creatures may become extinct. c The beaches will become more beautiful. d We will not lack food to eat.