(Question)
Some arthropods have special excretory structures, and insects are the largest group of arthropods. Given these facts, what can have special excretory systems among the following options: - feces - barnacles - animals - cacti - fungi - wings - soil - insects
(Answer)
insects

(Question)
Being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time, and marble is used for sculptures, and coal is used for fuel and energy like light. Given these facts, what does being buried under mud and soil change peat into among the following options: - potash - fuel - elms - mate - magic - fields - peat - bamboo
(Answer)
fuel

(Question)
When an electrical circuit is working properly , electrical current runs through that circuit, and an electric circuit is the path of an electric current. Given these facts, what does an electric circuit need to work properly among the following options: - complete - a path - a piston - radio waves - engines - multiple paths - energy - heat
(Answer)
a path