Answer: Given your four choices, the best/most correct one would be (c) the sunlight that evaporated water that eventually falls as rain and fills the reservoir. It is the potential energy stored in the reservoir water which is "released" as it is converted to kinetic energy (the movement of water which spins the hydroelectric generator turbine, etc.), but the absolute source of that original potential energy comes from the Sun's action to evaporate lake or ocean water which is returned to Earth as rain ... and it is this rainwater which ultimately fills the reservoir behind the hydroelectric power plant.
Explanation:
Your answer would be Water. :)
"an increase in predators" would likely lead to an increase in genetic variation in a population of squirrels, since the squirrels would have to adapt to the new threats.
Answer:
Acorns need the right soil conditions to germinate and sprout. Most germination of trees will begin during the early spring season. Given these conditions, the acorn will start to germinate and grow a taproot that pushes deep into the surrounding soil.