Which procedure could be used to demonstrate that matter is conserved during a physical change? (1 point) O Find the mass of a raw egg. Cook the egg. Find the mass of the cooked egg.

O Find the mass of a piece of ice. Let the ice melt. Find the mass of the liquid water.

O Find the mass of a cup of water. Boil the water. Find the mass of the water that remains.

O Find the mass of an apple. Cut the apple and remove the core. Find the mass of the remaining apple.

i believe the answer is a

dopamine..

"it was found that some people who were taking the drug l-dopa to raise their levels of dopamine were developing schizophrenic-like symptoms supporting research a strength of the dopamine hypothesis is that there are many studies which have shown support for the neurochemical explanation."

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

3. dark matter

empty space could also be a simple vacuum