Which of the following is a physical security threat caused by weather?Loss of PowerFloodInvestationEarthquake

All of the options mentioned can be considered as physical security threats caused by weather:

1. Loss of Power: Severe weather conditions like storms, hurricanes, or heavy snowfall can cause power outages. This can disrupt the functioning of security systems, computers, and other essential equipment.

2. Flood: Heavy rainfall or other water-related disasters can lead to flooding. This can damage infrastructure, equipment, and can also make the premises inaccessible.

3. Infestation: While not directly caused by weather, changes in weather can lead to infestations by pests like insects, rodents, etc. These can damage equipment and infrastructure.

4. Earthquake: Earthquakes are natural disasters that can cause severe damage to buildings and infrastructure, posing a significant physical security threat.

So, all of the above are physical security threats caused by weather.