Endangered species are which have become.

Fill in the blanks: Critically endangered species face extremes high rate of __________.

Rare species are species with

WWF has enlisted endangered species in Red Data Book.

Assertion : Critically endangered category includes the species which have sufficient populationa at present but is undergoing depletion due to some factors. Reason : Vulnerable category includes the species which are facing very high risk of extinction in the wild an can become extinct any moment. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Assertion : Threatened species are those living species which have been greatly reduced in their number and are liable to become extinct if the causative factors continue. Reason : IUCN is an international organisation which maintains the IUCN red list of threatened species, to assess the conservation status of different species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

What is common to Lantana, Eichhornia and Africa catfish? (a) All are endangered species of India. (b) All are keystone species. (c) All are mammals found in India. (d) All are species are neither threatened nor indigenous species of India.

Amongst the animal groups given below, which one has the highest percentage of endangered species? (a) Insects (b) Mammals (c) Amphibians (d) Reptiles

One of the ex situ conservation methods for endangered species is (a) Wildlife sanctuaries (b) Biosphere reserves (c) Cryopreservation (d) National parks.

The order of a gaseous phase reaction for which rate becomes half if volume of-container having same amount of reactant is doubled is: