Question

Which of the following are the major mountain ranges of Andhra Pradesh?
A. Nallamala
B. Erramallai
C. Palkonda
D.All of the above

Answer 1

Hint:We will discuss landforms of earth.There are a large number of landforms on the surface of the earth. The major landforms are: (i) Mountains; (ii) Plateaus; and (iii) Plains.A very steep land or hill rising to great heights above the land surrounding it is known as a mountain.

Complete answer:
Complete solution
The Eastern Ghats: These irregular hill ranges stretch from northern Odisha to the Nilgiris across coastal Andhra. They have an average elevation of 600 m above sea level and the highest peak is Mahendragiri (1,500 m) in Andhra Pradesh. The ranges are uniform in their northern portion up to Krishna river valley, but are characterised by individual ranges as one goes farther west.
Nallamala, Erramallai, Palkonda are the major mountain ranges of Andhra Pradesh. Andhra Pradesh has three main physiographic regions. Coastal plain, the Eastern Ghats and plateau west of eastern Ghats. Extension of Coastal Plains is from Bay of Bengal to the mountain. It covers almost the entire length of Andhra Pradesh and a number of rivers flow across the coastal plain. They flow into Bay Of Bengal from west to east. Rivers like Krishna and Godavari have their Delta which form the Central part of the plain. Eastern ghats do not form continuous ranges as it is broken by several river valleys.

Hence, the correct answer is option (D).

Note: Mountains are classified into three main types.They are classified based on the forces that have formed them. Three main types of mountains are-Fold Mountains, Residual Mountains and Block Mountains.