Mahanadi, Godavari, Krishna and Kaveri drain in the Bay of Bengal whereas Narmada drains in the Arabian Sea.

A sea cliff refers to a steep rocky coast that rises almost vertically above the seawater. Sea cliffs are typically formed by the erosive action of waves over a long period of time, causing the coastline to retreat inland and leaving behind a vertical or near-vertical rock face. These formations are often found in areas with rugged coastlines and are a result of various geological processes and erosion by the sea. Sea cliffs can be impressive natural landmarks and are often admired for their dramatic and picturesque views.

The population density of India in the year 2011 was 382 persons per square km. Densities vary from 1,102 persons per square km in Bihar to only 17 persons per square km in Arunachal Pradesh. Arunachal Pradesh has the lowest population density in India.

Indian Standard Time is calculated from the clock tower in Mirzapur nearly exactly on the reference longitude of IST at 82°30'E, within four angular minutes. In 1905, the meridian passing east of Allahabad was declared as a standard time zone for British India and was declared as IST in 1947 for the Dominion of India.

Pin Valley National Park is a National park of India located in the Spiti Valley in the Lahaul and Spiti district, in the state of Himachal Pradesh. It is located in far northern India. It is part of Cold Desert (biosphere reserve).

1. According to the 2011 census, the total population of Bihar is 104,099,452, of which males and females are 54,278,157 and 49,821,295 respectively.

2. According to the 2011 census, the total literacy rate of Bihar is 61.80 per cent.

3. In this, male literacy is 71.20% while female literacy is 51.50%.

4. According to the 2011 census, Bihar is the least literate state.

5. Hence, according to the 2011 census, Bihar ranks first in terms of the lowest literacy rate.

6. Kerala is the most literate state in the country with a literacy rate of 93.91%.

All the statements about Ahmedabad city are true.

1. The first mill in Ahmedabad was established on May 30, 1861.

2. Ahmedabad is located on the banks of the river Sabarmati.

3. Ahmedabad was often referred to as the ‘Manchester of India’.

4. Ahmedabad is situated very close to cotton-growing areas.

1. Humus is found in the topmost layer of soil (A-horizon).

2. Humus is a black or brown colored substance which makes the soil fertile.

3. It is an important source of nutrients for plants, and it helps the soil absorb water and air.

4. There are many ways to promote humus, including-

- Leaving crop residues in the field

- Using livestock manure

- making compost