वर्तमान में प्रगति पर प्रजातियों का 'छठा विलोपन' (Sixth Extinction) सामूहिक विलोपन की पिछली पांच घटनाओं की तुलना में कितने गुना अधिक तेज होने का अनुमान है?

Since the origin and diversification of life on Earth, there have been five episodes of mass extinction of species. How is the sixth extinction, which is currently in progress, different from the previous episodes?

'The Evil Quartet' of biodiversity loss includes which of the following?