Why is Antarctica referred to as a pristine place?

Antarctica is referred to as a pristine place because it remains largely untouched by human activity, preserving its natural environment in a state of purity. With no permanent human settlements and minimal pollution, the continent has maintained its original ecosystem, free from the industrial impact seen elsewhere on Earth. This unspoiled landscape allows scientists to study climate patterns and ecological processes in their purest form, offering insights into Earth’s past and the effects of global warming. Antarctica’s pristine nature underscores its importance as a global heritage site that needs to be conserved for future generations.

This question related to Chapter 3 English Vistas Class 12th NCERT.
From the Chapter 3. Journey to the End of the Earth.
Give answer according to your understanding.