316: Assertion (A):
The monsoonal rainfall decreases as one goes towards the west and north-west in the Ganga plain.
Reason (R):
The moisture-bearing monsoonal winds go higher up as one moves up in the Ganga plain.
In the context of the above two statements which one of the following is correct ?
(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
317: With reference to the river Luni, which one of the following statements is correct?
(a) It flows into Gulf of Khambhat
(b) It flows into Gulf of Kuchchh
(c) It flows into Pakistan and merges with a tributary of Indus
(d) It is lost in the marshy land of the Rann of Kuchchh
Explanation:
The Luni is a river western Rajasthan state, India. It originates in the Pushkar valley of the Aravalli Range, near Amer and ends in the marshy lands of Rann of kutch in Gujarat, after travelling a distance of 530 km. It is first known as Sagarmati, then after passing Givindgarh, it meets its tributary Sarsuti, which originates from Pushkar Lake, and from then on it gets its name Luni.
318: Which one of the following cities does not have the same clock time as that of the other three cities at any given instant ?
(a) Lisbon (Portugal)
(b) London (U.K)
(c) Addis Ababa (Ethiopia)
(d) Accra (Ghana)
Explanation:
London, Lisbon and Accra cities are situated approximately on the same longitude away from Addis Ababa showing the same clock time.
319: Lake Sambhar is nearest to which one of the following cities of Rajasthan?
(a) Bharatpur
(b) Jaipur
(c) Jodhpur
(d) Udaipur
320: Consider the following statements made about the sedimentary rocks :
I. Sedimentary rocks are formed at Earth's surface by the hydrological system.
II. The formation of sedimentary rocks involves the weathering of pre-existing rocks.
III. Sedimentary rocks contain fossils.
IV. Sedimentary rocks typically occur in layers.
Which of these statements are correct ?
(a) I and II
(b) I and IV
(c) II, III and IV
(d) I, II, III and IV
Explanation:
All the statements are correct.
The weathered material of the pre-existing rocks is transformed by the hydrolised systems and is deposited elsewhere in layers. They contain fossils.