Answer: independent variable
Explanation:
The pH will decrease because lemon juice is very acidic meaning it would bring the pH level down to a more acidic value.
IT IS NOT POSSIBLE to produce malleable cast iron in pieces having large cross sectional dimension. This is because, iron has a very rapid cooling rate and it will not be possible to achieve this rate at different cross sectional areas in a sheet of iron.
Photosphere,chromosphere and the corona
