TN State Board 10th Social Science Question Paper 2024

Soils formed by rivers are called alluvial soil. Rivers carry fine silt, sand, and clay and deposit them along their banks and plains, forming fertile alluvial soil. The other options are different soil types: red, black, and desert soils.

Pulicat Lake is located between Tamil Nadu and Andhra Pradesh. It is a brackish water lagoon and is one of the important coastal lagoons in India. The other pairs are incorrect because Pulicat Lake does not lie between those states.

The retreating monsoon winds pick up moisture from the Bay of Bengal. These winds blow back over the Bay, absorb moisture, and cause rainfall especially in the eastern coast of India, particularly Tamil Nadu. The other seas listed are not the main source of this moisture.

The first census in India was carried out in 1872. This was the earliest population count in India, though the first synchronous census was later conducted in 1881. Hence, 1872 is the correct answer.

Monsoon forests are otherwise called deciduous forests because the trees shed their leaves during the dry season. This is a characteristic feature of tropical monsoon regions. The other options refer to different types of forests.