Question

defination of Pollution​

Answer 1

Answer:

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

Answer 2

Explanation:

The first step to become a Doctor is to finish Higher Secondary (School) Certificate (HSC) or 10+2 tests succeeding at least 60 percent on the grade in the subjects of Biology, Chemistry, and Physics in the science stream. The next step is to get through the medical entrance exams after 12th.