How is the nucleus of an atom split? collision of atoms
radioactive decay
collision with a high-speed particle
chemical reaction

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals