Students set up a controlled experiment. They put five crickets in each of three identical containers. They Set one container to 15C, one to 20c, and one to 25C. Then They Count the number of cricket chirps in each container during 1 hour. What is the manipulated Variable? A. The temperature of each container B. The kind of containers used C. The number of cricket chirps D. The number of crickets in each container

Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c. what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?