3451: Which one of the following plants is effective in reducing water pollution and is also useful for producing bio gas ?
(a) Eucalyptus
(b) Water hyacinth
(c) Salvinio
(d) Lotus
3452: Which one of the following countries does NOT border the Caspian Sea?
(a) Armenia
(b) Azerbaijan
(c) Kazakhstan
(d) Turkmenistan
3453: Consider the following statements about the Roaring Forties
I. They blow uninterrupted in the Northern and Southern Hemispheres.
II. They blow with great strength and constancy.
III. Their direction is generally from North-West to East in the Southern Hemisphere.
IV. Overcast skies, rain and raw weather are generally associated with them.
Which of these statements are correct ?
(a) I, II and III
(b) II, III and IV
(c) I, III and IV
(d) I, II and IV
3454: Apart from Tamil Nadu (Neyveli), lignite is found at:
(a) Gujarat
(b) Uttar Pradesh
(c) West Bengal
(d) Orissa
3455: 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