Katrina inserts a key into her car’s ignition. she turns the key, putting her car into ignition mode. in this mode, some energy is used to increase the temperature of the car’s fuel. this energy allows the fuel to combust and the car to move. what’s this energy called? a. absorbed energy b. activation energy c. chemical energy d. released energy e. solar energy

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change