CUET Preparation Today
Assertion (A): The diversity of bird species decreases as we move away from the equator towards the poles. Reason (R): Colombia, located near the equator, has nearly 1,200 species of birds, while New York at 41° N has 56 species and Greenland at 71° N has only 42 species. |
Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A). Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A). Assertion (A) is true, but Reason (R) is false. Assertion (A) is false, but Reason (R) is true. |
Assertion (A) is true, but Reason (R) is false. |
The correct answer is Option (3) - Assertion (A) is true, but Reason (R) is false. The diversity of plants and animals is not uniform throughout the world but shows a rather uneven distribution. For many group of animals or plants, there are interesting patterns in diversity, the most well- known being the latitudinal gradient in diversity. In general, species diversity decreases as we move away from the equator towards the poles. With very few exceptions, tropics (latitudinal range of 23.5° N to 23.5° S) harbour more species than temperate or polar areas. Colombia located near the equator has nearly 1,400 species of birds while New York at 41° N has 105 species and Greenland at 71° Nonly 56 species. India, with much of its land area in the tropical latitudes, has more than 1,200 species of birds. |
