Landslide Prevention and Management Concepts

The video tutorial for Grade 11 students covers the impact of human activities on landslides. It explains the types of landslides and how activities like mining, quarrying, land development, pollution, and deforestation can trigger them. The tutorial also provides methods to prevent and mitigate landslides, emphasizing proper land use, drainage systems, vegetation cover, and public education.

What is a landslide?

• A type of earthquake

• A volcanic eruption

• A type of flood

• Movement of rock or earth down a slope

Which human activity involves the use of explosives that can trigger landslides?

• Tourism

• Fishing

• Mining

• Agriculture

How does land development contribute to landslides?

• By increasing vegetation

• By altering slope shapes and adding loads

• By stabilizing the soil

• By reducing rainfall

What is a consequence of land pollution related to landslides?

• Improved drainage

• Degradation of land surfaces

• Soil stabilization

• Increased vegetation

Which activity involves removing trees and can lead to landslides?

• Mining

• Deforestation

• Fishing

• Urbanization

What is a key method to prevent landslides related to water management?

• Removing vegetation

• Building more roads

• Checking drainage systems

• Increasing irrigation

Why is maintaining vegetation cover important in preventing landslides?

• It attracts wildlife

• It reduces oxygen levels

• It stabilizes the soil

• It increases soil erosion

What should be considered during construction on slopes to prevent landslides?

• Removing all vegetation

• Using more explosives

• Adapting designs to natural slopes

• Ignoring natural slope design

What is hazard mapping used for in landslide prevention?

• To promote mining activities

• To reduce vegetation

• To increase land development

• To locate areas prone to slope failures

Why is public education important in landslide prevention?

• To take safety measures when signs appear

• To reduce awareness

• To ignore warning signs

• To increase mining activities