A thermostat is a switch that operates itself when the temperature goes above or below a temperature that the user can set.
-- Before you go to bed, you set the thermostat for 65° . If the temperature in the house goes below 65° during the night, the thermostat turns on the furnace, and keeps it running until the house warms up to 65°. Then it shuts the furnace off.
-- After breakfast, you set the thermostat for 75°. If the temperature in the house goes above 75°, during the day, the thermostat turns on the air conditioner, and keeps it running until the house cools down to 75°. Then it shuts the air conditioner off.
-- On Sunday morning, you put the slow cooker on the kitchen counter, and you throw in a big roast, a sliced onion, some baby carrots, some sliced potatoes, some vegetable stock, salt, pepper, garlic, chili powder, and tomato paste. Then you put the cover on, turn the power on, and set the slow cooker to "LOW". The heater in the slow cooker turns on. Whenever the temperature in the crock gets higher than 160°, the thermostat in the slow cooker turns off the heater, and keeps it off until the crock cools down to 160°. Then the thermostat turns the heater on again. By dinner time, you have a hot, juicy, scrumptious pot roast, ready to eat. It's not too hot, not too cold, not too tough, not dried out, and it melts in your mouth. You're still thinking about it when you go to bed, and your mom gives you a slice to take to school for your lunch on Monday.
A. the left half becomes neutral while the right half remains negatively charged
Explanation:
This is because wherever light strikes the photoconductor, it transforms from an insulator into a conductor. The charge will then migrate through it and leaves its surface. By exposing the left half of the photoconductor to light, you allow its local charge to leave and it becomes neutral.
Answer: C) By collecting run off during the rainy season for future irrigation increases the agricultural production
Explanation:
Water harvesting is a process of collection of rain water by using special water storing systems. This water storage practice helps during the scarcity of water like in dry summer seasons and in conditions of drought. Such water can be treated with filters to make it potable for drinking. But generally the water is used for the purpose of irrigation in the agricultural field and household sanitary requirements.
On the basis of the above description, By collecting run off during the rainy season for future irrigation increases the agricultural production is the correct option.
