(Question)
Some insects can use their antennae to detect sound, and insects have 2 antennae. Given these facts, how many appendages do insects have to detect sound among the following options: - ears - Three - None - legs - 12 - six - Two - One
(Answer)
Two

(Question)
Coal is used to produce electricity by burning in coal-fire power stations, and solid refined coal is easy to transport and can be used in coal-burning equipment. Given these facts, solid materials used to produce electricity by burning in what need to be transported firs among the following options: - Conifers - animals - it needs them - humans - heat energy - important habitats - power stations - batteries
(Answer)
power stations

(Question)
Eyes are used for seeing by animals by sensing light, and vision is out the eyes. Given these facts, what is used for seeing among the following options: - feet - smell - fibers - light - radiation - nose - squids - vision
(Answer)
vision