Landslide

Determine what type of landslide is shown in the picture.

• rain-induced landslide

• earthquake-induced landslide

Determine what type of landslide is shown in the picture.

• rain-induced landslide

• earthquake-induced landslide

Give one human-induced cause of landslide.

Tags

NGSS.MS-ESS3-4

Give another human-induced cause of a landslide.

Tags

NGSS.MS-ESS3-4

Give one (1) criterion that makes an area prone to landslides. (why are some areas considered landslide hotspots?)

After heavy rainfall, the shear stress of a slope was doubled. If the initial ratio of shear stress to shear strength is 1:3. Will there be a landslide?

• YES

• NO

Answer explanation

Shear stress (SS) is what makes an object on a slope move while shear strength (ST) is what keeps it in place. SS must be higher than ST for a landslide to happen.

Since the initial ration of SS to ST is 1:3, even if you double the SS, the ratio will just become 2:3. Since shear strength is higher, no landslide will ensue.

Tags

NGSS.MS-ESS3-2

TRUE or FALSE

One mitigation measure against rainfall-induced landslide is to build drainage systems, water channels, or deflection walls to divert the flow of water and mud.

• TRUE

• FALSE

Tags

NGSS.MS-ESS3-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

TRUE or FALSE

If the LGU declared your area in danger from a landslide and advised you to evacuate, follow their advice and leave your properties and belongings.

• TRUE

• FALSE

Tags

NGSS.MS-ESS3-2

TRUE or FALSE

When driving, cross bridges and damaged roads with caution.

• TRUE

• FALSE

TRUE or FALSE

During a landslide, if you are inside your house and you cannot evacuate in time, close your doors and windows and safe-keep your belongings, then wait for the landslide to pass.

• TRUE

• FALSE