d) the only thing that can increase real GDP is an increase is output
hope this helps!
Photon has no mass at all
When you drop iodine on a leaf you may observe a colour change of orange/brown to a blue/black complex.
This is because in the leaf there are starch molecules that form a blue/black complex with the starch molecules.
hope that helps :)
The arrow doesn’t “point” to anything really, it means that the reactants form (or change) into the products.
