Bb Announcements 201630 X Bb Take T Quiz 7 20163 X c Chegg study IGuided S X I c

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Bb Announcements 201630 X Bb Take T Quiz 7 20163 X c Chegg study IGuided S X I ce a Search Save and Submit Saving All Answers Close Window 0.625 points Saved Question 1 As air moves from a shrub-filled coast to open water over a lake, it as air then moves from the open lake back onto a shrub-filled coast, it o diverges and sinks; converges and rises O converges and rises, diverges and sinks O diverges and rises; converges and sinks O converges and sinks; diverges and rises 0.625 points Save Answer Question 2 Intense surface heating creates a steep lapse rate and strong turbulence. 0.625 points Save Answer Question 3 is when winds move warm surface water away from the coast, which are replaced by colder, deeper water is when winds move warm surface water toward the coast, which forces colder waters deeper. a 4:29 PM HE Search the web and Windows A 7/10/2016

Explanation / Answer

1.Convergence occurs when wind speed decreases downstream which results in rise of air. Whereas divergence occurs when wind speed increases upstream and result in sinking of air.

As air moves from a shrub filled coast to open water lake friction with the surface decreases result in increase in wind speed so it diverges and sinks whereas as air moves from open lake to shrub filled coast its speed decreases due to the obstacle in its path arising due to uneven land surface (shrub filled coast) and hence friction increases which result in convergence and rise of air.

2. Intense surface heating creates a steep lapse rate and strong vertical turbulence. Vertical turbulence decreases the stability of atmosphere which results in formation of clouds and strong convective activity in the atmosphere and hence precipitation occurs.

3. Upwelling is when winds move surface water away from the coast which are replaced by colder deeper water from below whereas Downwelling is when winds move surface warm water towards the coast which forces colder waters deeper. Upwelling results in replacement of nutrient depleted water from the cold nutrient rich water from below resulting in high productivity of surface water of ocean. Whereas downwelling transports dissolved oxygen to deeper water which affects decomposition in surface waters.

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