If freshwater resources are to be used sustainably, which of the following do you
think will have the greatest impact:
building more water treatment plants,
using less water, or cleaning wastewater
before returning it to the ecosystem?

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.

The answer should be a.

Answerigneous bedrock of the oceanic crust;