Q: You are presented with the question "What causes erosion the most?" and the following answer choices: - streams - motion - LEDs - water - Roads - rivers - Winter - wind Now knowing that wind and rain cause erosion and water, in the form of rain, is the most effective agent of erosion, choose the best answer.
A: water

Q: You are presented with the question "Animal long term survival requires what?" and the following answer choices: - hibernation - breathing - Glucose - planting - four limbs - sleep - jousting - crowing Now knowing that an animal requires air for survival and long term survival depends upon outside air to breathe, choose the best answer.
A: breathing

Q: You are presented with the question "What is stored in the stem of the saguaro?" and the following answer choices: - gas - water - ice - sand - fibrous - sugar - glucose - energy Now knowing that acactus stem is used for storing water and saguaro cactus grow very slowly, choose the best answer.
A: water

Q: You are presented with the question "What does irradiating food do?" and the following answer choices: - Relieve pain - enhance food's nutrients - improves food safety - allows growth of bacteria - increases food waste - chemical changes - get chemical reactions started - major threat to health Now knowing that irradiating food can be used to kill existing microorganisms in the food and food irradiation is one tool for improving food safety by killing pathogenic microorganisms, choose the best answer.
A: improves food safety