Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Terrestrial biomes are associated with land, while aquatic ones are associated with water.
Terrestrial biomes are associated with land, while aquatic ones are associated with what?

Embryos usually don't survive if they have extra or too few of these genetic units?
Embryos usually don't survive if they have extra or too few of these genetic units?

Evaporation and condensation are similar because both are caused by changes in heat energy.

In which way are evaporation and condensation similar?