Collecting and reprocessing a resource to reuse it or make it useful is called __________.
Recycling
The correct option is B.
Explanation of the correct option:
Explanation of the incorrect option:
Option A:
Petrochemicals are chemicals made from the processing of petroleum and natural gas.
Option C:
Ecology is the study of organisms, their surroundings, and how they interact with one another and their surroundings.
Option D:
A landfill is an open area built on top of the ground for the disposal of the garbage. It is constructed in such a way that it should have no harmful effect on the environment.
Final answer: Collecting and reprocessing a resource to reuse it or make it useful is called recycling.