Stoma tend to be closed on a hot day to minimize water loss through transpiration, as high temperatures can increase the rate of transpiration. This helps the plant conserve water and maintain proper hydration levels.
No current flows in the circuit when the circuit is open, as in when the appliance is switched off. The voltage is on the "hot" side of the switch when it is in the open position but the neutral is not energized until the switch is closed.
Bloody hot in the day and hot at night
Windows are best left closed in a tornado. If you are not hit hard, the windows can prevent interior damage. If you are hit hard by a strong enough tornado some windows will break anyway. But if a tornado is coming it is best not to waste time opening or closing windows. Take cover immediately.
The plants that grow in hot and dry conditions are called xerophytic plants. Water conservation is key to their survival. So, they have innovated a new protocol of photosynthesis called CAM pathway, i.e., Crassulacean acid metabolism. In this pathway, such plants keep their stomata open in night to take up CO2 while their stomata remain closed during the day in order to avoid transpiration. In the daytime, they synthesize glucose from CO2.
C4 plants keep their stomata closed during hot and dry conditions to reduce water loss through transpiration. By keeping their stomata closed during these times, C4 plants can minimize water loss while still being able to carry out photosynthesis efficiently using their unique carbon fixation pathway.
Stomata are generally open during the day when light is available for photosynthesis and closed at night to conserve water and prevent excessive transpiration. If the temperature is not very hot, stomata may remain open longer during the day to allow for increased gas exchange for photosynthesis.
The system is open.
In a closed car on a hot day, the temperature inside can quickly rise to dangerous levels. This can result in heat exhaustion, heat stroke, and even death for occupants or pets left inside. It's important to always make sure to never leave anyone or any pet inside a closed car on a hot day.
The open windows help to expel the hot air trapped inside when they are closed.
Closed when coldWide open when hot
A thermostat can be stuck open or closed. If the engine runs to cool it is stuck open. If the engine is running hot it is stuck closed. If you don't have these problems you should'nt have to change it.
A hot open faced sandwich has one piece of bread, on the bottom, is covered with gravy and eaten using a knife and fork. A hot closed face sandwich has two pieces of bread, as for a regular sandwich, but is also covered with gravy and eaten using a knife and fork.
That would be the "guard cells". The stoma is an opening on the underside of many leaves and each stoma is bordered by a pair of guard cells that open and close the pore to allow for "transpiration" (the passage of water in either gaseous or liquid form into or out of the leaf). In hot, dry weather, the guard cells close to prevent water loss. In humid weather, the guard cells allow the pore to open and water can enter.
Vons on Murrieta hot springs i& Winchester is open
Stomata, also known as stoma, close in hot weather to retain water. Even though open stoma are necessary for photosynthesis, they can dry out a plant. About 90% of water absorbed by a plant is lost through open stoma. The guard cells close the entrance for protection against dehydration.
wat do u think
If the switch is "closed" both wires should be HOT - with switch open one wire should go COLD-- if not defective switch