Answer:
B. extraction
Step-by-step explanation:
In order to get oil for use, it needs to be extracted from under the ground. Once the oil is located, the oil well is placed on the location. The ground is drilled and the oil is popped out of the earth.
While all the points in the oil handling process can be dangerous to the environment, extraction has the biggest effect on the land and the sea as it can easily result in spills. Oil spills affect many years later and are risky for the animals and plants. This way, the ecosystem is affected and the environment is hurt, impacting pollution and climate change.