Except catalyst because catalyst typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.
Answer:
A and C
Explanation:
A; Animals inhale and exhale, breath oxygen, leave carbon dioxide.
C; We fart, so do they! (farts are a release of methane gas from our bodies) Just ask my dog...
Hope this helped!
A substance's molar mass is calculated by multiplying its relative atomic mass by the molar mass constant (1 g/mol). ... By multiplying a given mass by the molar mass, the amount of moles of the substance can be calculated.
The answer would be A. which says the emitter- base junction must be forward biased, and the collector- base junction must be reverse biased.