Question

practice it! you decide to investigate the question, \how does temperature affect how often crickets chirp?\ you create the hypothesis \if the temperature is warm, then the crickets will chirp more often\ based on your current observations and background knowledge. you place crickets into three different tanks. one tank is room temperature. the second tank is heated with a lamp. which of the following would be the best setup for the third tank of crickets? an empty tank without crickets a tank with two heat lamps a tank with a layer of ice covering the lid a tank with extra water

Explanation:

The experiment is testing the effect of temperature on cricket - chirping. One tank is at room temperature and another is heated. To cover a range of temperatures, a cold - temperature setup is needed. A tank with a layer of ice covering the lid would create a cold environment to test the hypothesis across different temperature conditions. An empty tank without crickets is not relevant to the experiment about cricket chirping. A tank with two heat lamps would just be another warm setup. A tank with extra water does not directly relate to temperature variation for this experiment.

Answer:

C. a tank with a layer of ice covering the lid