Which astronomer proposed the geocentric model?

How is the introduction of the cane toad to queensland, australia an example of the unintended consequences of using non-native species to control pests? (site 1)

The purpose of a preliminary hearing in juvenile court isa-to determine if there is a probable cause to proceed with trialb-to determine if the juvenile will be a detailed pending trialc- to appoint counsel for the juvenile defendant d-to impose sentencing

Which of the following types of stars had the smallest initial mass? which of the following types of stars had the smallest initial mass?