Answer:
A shortage of nutrients would cause sickness and death to organisms in an ecosystem.
Explanation:
When nutrients are scarce, organism populations decline; when they are substantial, those populations increase.
Evaporation is the process that requires water to gain heat energy from the environment to turn into gas.
Answer:
Due to increasing the survival.
Explanation:
The natural selection causes a change in allele frequency leading to a change in the color of the frogs because the colour of the frog helps it in hiding from predators. The population of that frog specie increases which has the ability to hide from the predators in that environment while on the other hand, the population of frog decreases which can easily be seen by the predator due to its colour so this change in allele frequency will leads to natural selection.
They show evidence of other life beyond us, when we see fossils they give is info that can determine other scientific data that is important for human life