236: 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
237: Recently, which of the following States has explored the possibility of constructing an artificial inland port to be connected to sea by a long navigational channel?
(a) Andhra Pradesh
(b) Chhattisgarh
(c) Karnataka
(d) Rajasthan
238: How many numbers from 0 to 999 are not divisible by either 5 or 7 ?
(A) 313
(B) 686
(C) 341
(D) 786
239: Sun's halo is produced by the refraction of light in
(a) Water vapour, in Stratus clouds
(b) Ice crystals in Cirro-Cumulus clouds
(c) Ice crystals in Cirrus clouds
(d) Dust particles in Stratus clouds
240: Consider the following statements:
1. Either of the two belts over the oceans at about 30 degree to 35 degree N and S Latitudes is known as Horse Latitude.
2. Horse latitudes are low pressure belts.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Neither 1 nor 2
(d) Both 1 and 2