The reaction in which calcium carbonate produces calcium oxide and carbon dioxide is: CaCO3 = CaO + CO2. Thus, the third option is the right one.
The breaking down of calcium carbonate to calcium oxide and carbon dioxide is called DECOMPOSITION REACTION. A decomposition reaction is a type of reaction in which a single element is broken down into two or more elemental parts, which are less complex than the parent compound.There are three types of decomposition reaction, these are thermal, photo and electrolytic decomposition reactions.
Stars begin as vast clouds that are called Molecular clouds, or Nebulae.
Nebulas are produced of the hydrogen in the molecular form (H2), dust,
helium and other ionized gases. Aurora is a natural display of glowing
light in the night sky, connected with the magnetic field of the planet.
Protostar is an undeveloped star in it`s early stages of creation. It
comes after the stage of Nebula. White Dwarf is the last phase of the
star`s life. Answer: B ) Nebula.
The answer is; D
It reduces the diversity of the population because some variations in the population can be completely eliminated by the bottleneck effect. Even if the population recovers in population size, the genetic variation will have reduced as compared to the initial population before the bottleneck. For a mall population, this effect can be grave because the reduced genetic variation may mean that the population may be unable to adapt to new selection pressures hence may go extinct.
The answer is: "<span>candidiasis" .
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