Answer:
Option A
Incandescent
Explanation:
While low pressure sodium light bulb produces the highest lumens per watt, it's incandescent light bulb that produces the lowest lumens per watt. It's important to note that incandescent lights operate at the same wattage as fluorescent lights to give out same amount of light but they produce the lowest lumens per watt compared to fluorescent lights.
Answer:B
Explanation: Gravity pulls denser air and water downward, forcing less dense air and water to move upward. The warm water near the surface of the ocean heats up with sunlight and evaporates, keeping the water cycle in motion.
<u>Answer</u>
Fossils are remains from animals and plants. They are embedded in rock and preserved in petrified form.
In a fossil fuels power plant carbon fuels such as oil, coal and gas are burnt to generate steam that are used to turn large turbines that generate electricity.
These turbines turn magnetic fields inside conductor inducing a large current in them.
Fossils fuels are much reliable as they can be used for a long period of time.