You are presented with the question "what is electricity?" and the following answer choices:  - coiled  - movement  - dangerous  - energy  - waves  - engines  - a hazard  - Light  Now knowing that electricity is used as an energy source by electrical devices and electrical sources are potential hazards, choose the best answer.
a hazard

You are presented with the question "What can be used to power households?" and the following answer choices:  - heat  - energy  - motors  - cells  - cars  - wind  - coal  - Gas  Now knowing that wind is used for producing electricity and this electricity can be used to power households, choose the best answer.
wind

You are presented with the question "Anorexia can be caused by " and the following answer choices:  - parasites  - contamination  - cigarettes  - Leptospirosis  - Smoking  - Pesticides  - heat or cold  - acetic acid  Now knowing that roundworms may be free-living or parasitic and roundworms Can Cause Anorexia, choose the best answer.

parasites