Questions

Species richness is generally lower in the Arctic than at lower latitudes, and richness also tends to decline from the low to high Arctic.Many hypotheses have been advanced to explain the overall decline of biodiversity with increasing latitude, although there is still no consensus about a mechanistic explanation. Abiotic factors include lower available energy and area at high latitudes, and the relatively young age of Arctic ecosystems.

Kanyakumari is nearest to the Tropic of Capricorn, and the sun's rays fall vertically here during December.

Let the heights of Cat, Table and Turtle be C, T & R respectively.

From the above given figure,

C + T - R = 170 ......(a)

R + T - C = 130 ......(b)

Adding above eqns (a) & (b), we get

2T = 300

T = 150 cm

Hence, the height of the table is 150 cm.