Which of the following statements about the Ganga River Dolphin (Platanista gangetica) are true? 1. The Ganga River Dolphin, commonly known as Susu, is endemic to the Indian sub-continent and is also referred to as the Tiger of the Ganga. 2. It has a long thin snout, rounded belly, stocky body, and large flippers, with a slit similar to a blowhole on top of its head acting as a nostril. 3. Females are larger than males and give birth to one calf every two to three years. Calves have chocolate brown skin at birth, while adults have grey-brown smooth, hairless skin. 4. Ganges River dolphins, restricted to freshwater, use ultrasonic waves for hunting and navigating. Their unique swimming behavior aids in finding food, and they emit the 'Susu' sound while surfacing to breathe.

With reference to Indian elephants, consider the following statements: 1. The leader of an elephant group is a female. 2. The maximum gestation period can be 22 months. 3. An elephant can normally go…

Which of the following statements with regard to the arrival of Amur Falcons at Doyang Lake in Nagaland each year from Mongolia is/are correct? 1. It showcases how sustained local conservation effort…

With reference to 'Ecosystem', which of the following statements is/are correct? 1. Green plants in terrestrial ecosystem capture about 1% of energy of the sunlight that falls on their leaves. 2. Aro…

Consider the following statements: Statement-I: The atmosphere is heated more by incoming solar radiation than by terrestrial radiation. Statement-II: Carbon dioxide and other greenhouse gases in the…

With reference to "Gucchi" sometimes mentioned in the news, consider the following statements: 1. It is a fungus. 2. It grows in some Himalayan forest areas. 3. It is commercially cultivated in the H…