Which techniques can reduce the effects of tornadoes?

1 building storm cellars and wind-resistant structures
2desalinizing the water
3 using more radars and satellites in the area
4 encouraging citizens to use water conservation devices
5 removing levees

1.building storm cellars and wind-resistant structures.

3.using more radars and satellites in the area.

A tornado is a storm of wind. In tornado the high speed wind takes the form of a cone that destroys anything that comes in it's path. The following techniques can help in reducing the effects of tornadoes:

1. building storm cellars and wind-resistant structures: This will provide support and protection to the building against high speed wind currents during an event of tornado.

3.using more radars and satellites in the area: This will help in identification of origin of wind producing tornado in a region so as to create awareness about the coming calamity. This will allow people to relocate to safer place and can take preventive measures.    

reserve is the answer