The introduction of caulerpa, also known as killer algae, into california was ultimately the result of

hull fouling

Hull fouling.

Explanation: Hull fouling can be defined as the way by which the organisms attach themselves to the hull of the ship during the voyage and transport themselves to long distances.

Aquatic plants, are transported easily when the plant fragments gets attached to the boat. Sometimes the tangled plant fragments slows down the speed of the boat.

The introduction of Caulerpa, the killer algae was also introduced in this way.

i think it's they require warm air

explanation:

tornados usually happen when it's raining right so when it's raining it cools down so if the temperature keeps changing then i think a tornado occurs sorry if it's wrong