486: Consider the following plants:
1. Bougainvillea
2. Carnations
3. Cocoa
4. Grapes
Which of these plants are propagated by stem cuttings?
(a) 1 and 2
(b) 2, 3 and 4
(c) 1, 3 and 4
(d) 1, 2, 3 and 4
487: Consider the geographical details given in the following figure :
The point marked by A in the figure indicates a country in
(a) North America
(b) South America
(c) Europe
(d) Asia
488: Consider the following pairs:
1. Nokrek Bio-Sphere Reserve : Garo Hills
2. Logtak (Loktak) Lake : Barail Range
3. Namdapha National Park : Dafla Hills
Which of the above pairs is/are correctly matched?
(a) 1 only
(b) 2 and 3 only
(c) 1, 2 and 3
(d) None
Explanation:
Nokrek National Park, or Nokrek Biosphere Reserve, is a national part located Approximately 2 km from Tura Peak in West Garo Hills district of Meghalaya, India. UNESCO added this National park to its list of Biosphere Reserves in May 2009.
Loktak Kake, the largest freshwater (sweet) lake in northeast India, also called the only Floating lake in the world due to the floating phumdis (heterogeneous mass of vegetation, soil, and organic matters at various stages of decomposition) on it, is located near Moirang in Manipur state, India.
The Namdapha National Park is located in Changlang district of the Northeastern state of Arunachal Pradesh, near its border with Myanmar. The park is located between the Dapha bum range of the Mishmi Hills and the Patkai range with a wide altitudinal range between 200 m asl and 4571 m asl.
489: Which one of the following groups of plants was domesticated in the New World and introduced into the 'Old World'?
(a) Tobacco, cocoa and rubber
(b) Tobacco, cotton and rubber
(c) Cotton, coffee and sugarcane
(d) Rubber, coffee and wheat
Explanation:
New World" means the Americas which were discovered by European Powers such as Spain, Portuguese and French; Tobacco, Cocoa and Rubber were native crops of Americas and were introduced in the Old World (Asia).
490: Consider the following statements:
1. Asiatic lion is naturally found in India only.
2. Double-humped camel is naturally found in India only.
3. One-horned rhinoceros is naturally found in India only.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3
Explanation:
Asiatic lions that once ranged from Persia (Iran) to Palamau in Eastern India were almost driven to extinction by indiscriminate hunting and habitat loss. A single population of less than 50 lions persisted in the Gir forests of Gujarat by late 1890's. With timely and stringent protection offered by the State Government and the Center Government, Asiatic lions have increased to the current population of over 500 numbers. Hence, statement 1 is correct. The double-hump camel is a native of Gobi desert, and is found on a vast expanse of cold-desert areas across Mongolia, China, Kazakhstan, Turkmenistan, Uzbekistan and parts of Afghanistan. Hence, statement 2 is NOT correct. The populations of one horned rhinoceros have increased to around 3,500 rhinos in northeastern India and the Terai grasslands of Nepal. Hence, statement 3 is NOT correct.