Answer:
Option d. an incense stick
Explanation:
because it produces smoke and it's smell attracts others.
Answer:
Moon, planet, planet
Explanation:
Moons revolve around planets, Jupiter is considered a planet because it revolves around the sun, and a planet is a body that revolves a star.
Answer:
Bacteria that metabolize NO2- to give rise to NH4+ belongs to the family of denitrifying bacteria and nitrate ammonification bacteria such as pseudomonas.
Explanation:
Denitrifying bacteria uses NO2- as electron aceeptor thus converting the nitrite ion (NO2-) to ammonium ion(NH4+).
a) The above reaction is a reduction reaction because NO2- or nitrite ion accept electron to generated its reduced form known as ammonium(NH4+).
b) NO2- acting as electron acceptor in this reaction.
