2. Which of the following might cause pollution?

(a) car exhaust

(c) oceans

(b) chemicals

(d) people

Answer: (a) car exhaust; (b) chemicals and (d) people

Step-by-step explanation:

Indeed, it all starts from people. They are the ones who use the cars and make the pollution happen. It is also people who use chemicals to pan and find gold, for example, polluting rivers.

All of them cause pollution

Step-by-step explanation:

Car exhaust: it causes air pollution due to the release of certain dangerous forms of carbon into the atmosphere. Chemicals:this causes a wide range of effects as it can lead to air water and land pollution. Its effects ranges from release of harmful gases into the atmosphere to pollution of river to the contamination of soil Oceans: this can be caused when water is not needed in a particle environment and this water can lead to the contamination of those materials in that environment as in the case of a chemical experiment that gets contaminated or becomes dangerous when exposed to moisture or the direct entry of ocean water into a habitat that doesn't need that much water People: They can be see as the major cause as the control or affect what goes wrong in their environment. They have certain control on various factors that cause pollution.