Read the following statements and select the correct answer from the codes given below:

1. Corals are mainly found in the tropical oceans.

2. Corals need clean sediment free water.

3. Corals are mainly found in deeper parts of the ocean.

4. Rain water promotes the growth of corals.

Codes: 

(a) 1 and 2 (b) 2 and 3 (c) 3 and 4 (d) 2 and 4

From west to east, what are the three main island groups in the Pacific called ? 

(a) Melanesia, Micronesia and Polynesia 

(b) Polynesia, Micronesia and Melanesia 

(c) Melanesia Polynesia and Micronesia 

(d) Micronesia, Polynesia and Melanesia

Which one of the following pairs is not correctly matched? 

(a) Kuroshio  : Warm ocean current 

(b) Labrador  : Warm ocean current 

(c) Benguela  : Cold ocean current 

(d) Oyashio  : Cold ocean current

The Red Sea is an example of a 

(a) folded structure (b) faulted structure (c) lava structure (d) residual structure

Arrange parts of ocean floor according to increasing distance from the coast. 

(a) continental slope, continental shelf, continental rise, deep sea plain 

(b) continental shelf, continental rise, deep sea plain, continental slope 

(c) continental shelf, continental slope, continental rise, deep sea plain 

(d) continental rise, continental shelf, continental slope, deep sea plain