(Question)
If contact between rocks over long periods of time causes rocks to be slippery, then contact between rocks over long periods of time causes rocks to be what? Answer choices: - erosion - Loose - slippery - loose soil - homogenous - coiled - imbalanced - threatened
(Answer)
slippery

(Question)
If contact between shale over long periods of time causes it to smooth, then what is smoothed by contact over long periods of time? Answer choices: - shale - earth - eras - Roads - soils - water - clouds - ground
(Answer)
shale

(Question)
If insects have special excretory structures, then what has a special excretory structure? Answer choices: - Silk plants. - Insects. - a fish - animals - plants - Architecture structures. - barnacles - Corset structure.
(Answer)
Insects.