Natural selection requires variation between individuals. Mutations and reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring.
Option 7 is the correct answer
Answer:
Well, currently CO2 levels have been increased. The concentration of this gas has not stopped increasing since the beginning of the sixties, when the records of this gas began to be made.
Explanation:
The atmospheric concentration of CO2 has reached 415 parts per million, passing the 400 barrier, which was exceeded in 2015, the crucial year where the Paris Agreement was signed. This agreement seeks to reduce greenhouse gases whose purpose is to avoid an increase in temperature. The current concentration of carbon dioxide is 145% of the industrial levels, very high levels in the atmosphere for this gas.
<span>The best answer is that it would be a gas instead of a liquid, but this isn't one of the choices. I suppose the next best is that it would not expand when it freezes.</span>
The step in which reactant escape from the surface into the gas phase is known as desorption
Desorption is a phenomenon whereby a substance is released from or through a surface. One substance is released from another either from the surface or through the surface. Desorption can occur when the system is in the state of sorption equilibrium between bulk (fluid) and adsorbing surface.( boundary separating two fluids)
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