Q87. Consider the following statements: 1. Ocean currents are slow-surface movement of water in the ocean. 2. Ocean currents assist in maintaining the Earth’s heat balance 3. Ocean currents are set in motion primarily by prevailing winds 4. Ocean currents are affected by the configuration of the ocean Which of these statements are correct?

Consider the following factors: 1. Rotation of the Earth 2. Air pressure and wind 3. Density of ocean water 4. Revolution of the Earth Which of the above factor

Consider the following statements: 1. In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence of tr

Consider the following statements about the ‘Roaring Forties’: 1. They blow uninterrupted in the northern and Southern Hemispheres 2. They blow with great stren

Consider the following statements made about sedimentary rocks: 1. Sedimentary rocks are formed at earth’s surface by the hydrological system 2. Formation of se

Consider the following statements : Statement-I: The temperature contrast between continents and oceans is greater during summer than in winter. Statement-II: T

Consider the following statements : 1. Tides are of great help in navigation and fishing. 2. High tide enables big ships to enter or leave the harbour safely 3.

Consider the following statements: 1. Total land area of earth is approximately 1475 lakh square kilometers. 2. Ratio of land area to water area of earth is app

Which of the following is/are correct inference/inferences from isothermal maps in the month of January? 1. The isotherms deviate to the north over the ocean an

Consider the following statements: 1. Annual range of temperature is greater in the Pacific Ocean than that in the Atlantic Ocean. 2. Annual range of temperatur

Which one of the following statements is not correct ?

The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is/are the reason/reasons ? 1. Thermal difference b

What explains the eastward flow of the equatorial counter current?

Consider the following statements: At the present level of technology available in India, solar energy can be conveniently used to: 1. Supply hot water to resid

Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when: 1. The orbit is geosynchronous.

Tides occur in the oceans and seas due to which among the following? 1. Gravitational force of the Sun 2. Gravitational force of the Moon 3. Centrifugal force o

Which one of the following factors is responsible for the change in the regular direction of the ocean currents in the Indian Ocean?

With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct? 1. OMT is measured up to a depth of 26°C isotherm wh

Consider the following statements : 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are l

With reference to ‘Indian Ocean Dipole (IOD)’ sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/a

The most important fishing grounds of the world are found in the regions where:

The acidification of oceans is increasing. Why is this phenomenon a cause of concern: 1. The growth and survival of calcareous phytoplankton will be a

La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino? 1. La Nina is characterized by unusually cold o

In which one of the following oceans Diamantina Trench is situated?

Assertion (A) : During the neap tides. The high tide is lower and the low tide is higher than usual. Reason (R) : The neap tide, unlike the spring tid