Which of the following best describes passive transport of materials across a membrane? passive transport requires energy and moves materials from areas of relatively lower to higher concentration. passive transport does not require energy and moves materials from areas of relatively lower to higher concentration. passive transport does not require energy and moves materials from areas of relatively higher to lower concentration. passive transport requires energy and moves materials from areas of relatively higher to lower concentration.

The answer is passive transport does not require energy and moves materials from areas of relatively higher to lower concentration.

Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

the answer to your question is tooth decay.