21. Atmospheric circulation on the Earth occurs because of d. They originate at

Question

21. Atmospheric circulation on the Earth occurs because of d. They originate at the equator and flow aloft in the Troposphere oen nemisphere greater insolation (solar heating) at the tropical latitudes. a. b. movement of heat energy from the Equator towards the poles. summertime heating of the poles and movement of heat towards the Equator. c. d. both a and b above 22. The greates t effect of water evaporation in the Equatorial regions of the Earth is a. recycling of the Ocean's water every 4,100 years b. humidification of Equatorial air. c. creation of Equatorial rain forests. d. transfer of heat from the sun into the latent heat of water vapor. 23. Which of the following is false about Hurricane development? a. Ocean surface temperature must be above 79 degrees Fahrenheit. b. They originate as atmospheric lows. c. They move across the Atlantic 'by the Northeasterly Trade Winds. d. They occur in all three atmospheric circulation cells. 24. What is the name of slow, deep ocea n currents beneath the pycnocline? a. Surface currents b. Thermohaline currents c. Convection currents d. Polar currents . How many vertical water masses are common in tropical and temperate latitudes? a. 1 b. 3 C. d. 6

Explanation / Answer

Q21. Atmospheric circulation on the Earth occurs because of (a) greater insolation at the tropical latitudes and (b) movement of heat energy from equator to polar regions.So, the answer will be option (d).

Q22. The greatest effect of water evaporation in the equatorial regions is the humidification of equatorial air.

Q23. Harricane cannot be developed in all three atmospheric circulation cell.The option given in (d) is false.

Q24. The slow, deep acean current beneath the pycnocline is called Thermohaline current.

Q25.Number of vertical water masses in tropical and temperate latitudes include three layers i.e (i) deep and abyssal layer (ii) intermediate layers (iii) upper surface layers. Thus, the option given in (b) is correct.

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