C. To provide a protective environment to grow plants. D. To supply carbon dioxide and nitrogen for plant growth. 108. Heat from the sun that greenhouses collect and store inside is: A. Fossil energy. B. Kinetic energy. C. Nuclear energy. D. Radiant energy. 109. Which environmental control should Joe use to cause lights to automatically turn on and off at certain times? A. Carbon dioxide meter. B. Sterilizer. C. Thermostat. D. Timer. 9_12 Agriculture AP42 - Horticulture II Test 1 110. Jason adjust the thermostat in his greenhouse. Which environmental factor is he trying to change? A. Carbon dioxide. B. Light. C. Temperature. D. Water. 111. Taylor wants to install his greenhouse environmental control devices to get the most accurate readings. At what height should the thermostat be installed? A. Ground level. B. One foot above ground level. C. Plant level. D. Six feet above ground level. 112. Heaters, fans, cooling pads, and ventilators are used in a greenhouse to control: A. Light. B. Moisture.
C. To provide a protective environment to grow plants. D. To supply carbon dioxide and nitrogen for plant growth. 108. Heat from the sun that greenhouses collect and store inside is: A. Fossil energy. B. Kinetic energy. C. Nuclear energy. D. Radiant energy. 109. Which environmental control should Joe use to cause lights to automatically turn on and off at certain times? A. Carbon dioxide meter. B. Sterilizer. C. Thermostat. D. Timer. 9_12 Agriculture AP42 - Horticulture II Test 1 110. Jason adjust the thermostat in his greenhouse. Which environmental factor is he trying to change? A. Carbon dioxide. B. Light. C. Temperature. D. Water. 111. Taylor wants to install his greenhouse environmental control devices to get the most accurate readings. At what height should the thermostat be installed? A. Ground level. B. One foot above ground level. C. Plant level. D. Six feet above ground level. 112. Heaters, fans, cooling pads, and ventilators are used in a greenhouse to control: A. Light. B. Moisture.
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