Which of the following imaginary lines join places with same level of rainfalls?
1). Contour lines
2). Isobaths lines
3). Isohyets lines
4). Isobar lines
1. Which is the world's largest desert
2. The range that acts as watershed between India and Turkistan is
4. In which type of rocks are coal and petroleum found
6. The tide at its maximum height is known as
7. The oldest inhabitants of India are considered to be :
8. The country having the largest area under tea cultivation is :