The term 'The Evil Quartet' is related to the major causes of:

Which species has become extinct due to overexploitation by humans?

Which of the following statements is correct regarding Parthenium (Carrot grass)?
$(a)$ It was introduced into India as a contaminant with imported wheat.
$(b)$ It causes allergies.
$(c)$ Asexual reproduction occurs in its flower.

What could be the possible explanation for the greater vulnerability of amphibians to extinction compared to other animal groups?

Of the four major causes for the loss of biodiversity (Alien species invasion,habitat loss and fragmentation,over-exploitation,and co-extinctions),which according to you is the major cause for the loss of biodiversity? Give reasons in support.

At high altitudes,birds become rare or extinct. The plants which may disappear along with them are: