Activity 1: Increase or Decrease
Directions: Determine the correct relationship between the statements below by
choosing the best answer inside the parentheses.
1. The presence of more plants (increases, decreases) the vulnerability of an area
to landslides.
2. High and frequent rainfall (increases, decreases) the occurrence of a geologic
hazard.
3. Earthquake on an uphill area (increases, decreases) exposure to landslides.
4. Extremely dry weather can increase, decrease) the occurrence of sinkholes.
5. Heat during a wild fire (increases, decreases) the hydrophobic capacity of the
soil.
The decrease in size of the void underneath the ground (increases, decreases)
the size of the sinkhole.
7. The presence of clay (increases, decreases) the occurrence of a landslide.
8. A broken water pipe underneath a residential area can (increase, decrease)
internal erosion.
9. Damp soil (increases, decreases) the surface tension of the particles.
10. Water saturated soil (increases, decreases) pore spaces between the soil
particles.​