Answer: B
Explanation:The energy needed by living things comes from the sun. Every ecosystem depends on green plants to trap the energy in sunlight and change it into chemical energy. The process by which green plants convert the sun's energy is called photosynthesis.
The temperature and blood pressure of the patient drops.
You can turn off the light when you're done using it, you could turn off the water while brushing your teeth, or even take shorter showers.
