Final answer:
British Columbia has the highest frequency of landslides in Canada due to its mountainous geography, steep slopes, weak materials, and heavy precipitation. As the population expands into the mountains, the risk of landslides increases, emphasizing the need for precautions and measures to mitigate the risks.
Step-by-step explanation:
The reason British Columbia has the highest frequency of landslides in Canada is because of its geographical characteristics. The province is located in a mountainous region, which is prone to landslides due to steep slopes, weak or fractured materials, and heavy precipitation. Additionally, British Columbia has a high population density in mountainous areas, increasing the risk and impact of landslides.
As the population expands into the mountains, there will be an increased risk of landslides. More people living in these areas means more potential casualties and property damage in the event of a landslide. It is important to take precautions and implement measures to mitigate the risks, such as proper land use planning, engineering solutions, and early warning systems.