The monsoon season in Kerala poses an increased risk of:

The correct answer is: a) Landslides.

The monsoon season in Kerala is a time of heavy rainfall. This can lead to landslides, which are a major hazard in the state. Landslides can occur when the ground becomes saturated with water and is unable to support the weight of the overlying soil and rock. This can happen when there is a sudden increase in rainfall, or when there is a prolonged period of heavy rain.

Landslides can cause significant damage to property and infrastructure, and can also result in loss of life. In 2018, a landslide in Kerala killed at least 40 people.

The other options are incorrect because they are not major hazards in Kerala during the monsoon season.

• Heatwaves are not a major hazard in Kerala because the state has a tropical climate.
• Typhoons are not a major hazard in Kerala because the state is located outside of the typhoon belt.
• Sandstorms are not a major hazard in Kerala because the state is not located in a desert region.