(b) Japanese
A tsunami is a series of long waves caused by a sudden and significant displacement of the ocean. These waves can travel across entire ocean basins and cause devastating damage to coastal areas. Tsunamis are also called seismic sea waves and are one of the most powerful and destructive natural forces. They are caused by many reasons such as: Volcanic eruptions, Landslides, Nuclear tests, Glacier calvings and Meteorite impact in the ocean.

(d) Temperature
The color of a star mostly indicates a star’s temperature, and it can also suggest the star’s age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

(b) 1 and 3
Asteroids: They are small, rocky objects that orbit the Sun. Although asteroids orbit the sun like planets, they are much smaller than planets. Most of this ancient space rubble can be found orbiting the Sun between Mars and Jupiter within the main asteroid belt. The total mass of all the asteroids combined is less than that of Earth’s Moon. They do not show a perceptible glowing tail.
Comets: They are frozen leftovers from the formation of the solar system composed of dust, rock and ices. When it is closer to the sun, it heats up and spews dust and gases into a giant glowing head/tail larger than most planets. There are likely billions of comets orbiting our Sun. They primarily originate from two regions: the Kuiper Belt, and the Oort Cloud.

(c) All three
The Bengal Florican, also known as the Bengal Bustard, is a critically endangered bird species native to the Indian subcontinent, Cambodia, and Vietnam. It is the sole member of the Houbaropsis genus and is listed on Schedule I of the Wildlife Protection Act of India, 1972.
• The Bengal Florican was recently listed in Appendix I of the Convention on Migratory Species (CMS), which will help to strengthen international cooperation for its conservation.
• The Government of India has launched a national action plan for the conservation of the Bengal Florican, which outlines a number of specific actions that will be taken to conserve the species.
• The conservation of the Bengal Florican is a complex challenge, but it is essential to ensure the survival of this iconic species.

(c) Annual rain occurs less than 25cm
A desert is an arid area that receives less than 25 centimeters (10 inches) of rainfall each year. These areas have low humidity and moisture deficits, meaning that water evaporates more quickly than it can be replenished by precipitation.