Answer:
Burning wood
Explanation:
the fire releases heat into the air from the burning wood
Ca(s)+2Hcl(aq) ------>CaCl2(s)+H2(g)
Answer:
Doping with galium or indium will yield a p-type semiconductor while doping with arsenic, antimony or phosphorus will yield an n-type semiconductor.
Explanation:
Doping refers to improving the conductivity of a semiconductor by addition of impurities. A trivalent impurity leads to p-type semiconductor while a pentavalent impurity leads to an n-type semiconductor.
It is B, From the bottom of the pyramid to the top
