Prelims geography ocean currents: NCERT statements on driving forces and Coriolis
In the context of [ ocean currents ] , consider the following statements: NCERT XI F P Geo ch:13,P 111 , Revision Time 😁😁 CSE PT I Statement I: The primary forces that influence the currents are: (i) heating by solar energy; (ii) wind; (iii) gravity; (iv) coriolis force. Heating by solar energy causes the water to expand. That is why, near the equator the ocean water is about 8 cm higher in level than in the middle latitudes. Statement II: The Coriolis force intervenes and causes the water to move to the right in the northern hemisphere and to the left in the southern hemisphere. Statement III: These large accumulations of water and the flow around them are called Gyres. These produce large circular currents in all the ocean basins. Which of the above statement(s) is/are correct? (a) All three (b) Only two (c) Only one (d) None