A specific type of physical change is a phase change
The answer is; D
Solar cells usually convert solar energy into electricity which could later be reserved. The efficiency of solar cells is still low, compared to other sources, with a conversion rate of 15% - 22%. This reduces the attractiveness of solar cells as a competitive source of energy. This also makes this form of energy expensive due to its inefficiency.
"F many scientists conduct the same or similar experiments, and all obtain similar results a 'Scientific Law or Theory' can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works
<span>The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. </span>
