Select the appropriate option regarding the term 'The Evil Quartet'.

If birds at high altitudes are rarely seen or become extinct,which of the following plants associated with them will also become extinct?

Due to which characteristics was the water hyacinth $(Eichhornia \text{ } crassipes)$ introduced in India?

According to the $IUCN$ Red List,in which category is the Red Panda $(Ailurus fulgens)$ classified?

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 in progress, different from the previous episodes?

Which of the following is responsible for the extinction of wildlife?