Meteorology 1)[FILL IN THE BLANK] The counterclockwise winds associated with nor
ID: 109428 • Letter: M
Question
Meteorology
1)[FILL IN THE BLANK] The counterclockwise winds associated with northern hemisphere midlatitude _______ play a significant role in the movement of air masses, transporting warm moist air northward ahead of a low while dragging colder, drier air southward behind it.
2) Fog _______ uses nets placed perpendicular to prevailing winds that act as condensation nuclei for condensing and collecting water droplets from fog.
3) An ______ fan is a fan shaped discharge of sediment and debris, usually caused by a sudden and intense downpour of rain, which flows quickly over changes (breaks, gulch, etc.) in topography.
4) [TRUE/FALSE] Potential causes for variations in the size of Ozone holes at both poles, include:
a. the natural chemical reactions responsible for the production and destruction of ozone in the stratosphere (middle atmosphere)
b. the seasonal variations in incident sunlight on the planet
c. "special" features of polar weather that isolates this region of the atmosphere from the rest of the planet during part of the year.
d. the addition to the atmosphere of ozone depleting chemicals through human activities the presence of "active surfaces" in the polar stratosphere upon which ozone destruction reactions can be enhanced. This includes volcanic aerosols and polar stratospheric clouds.
Explanation / Answer
1. Cyclone
2 harvesting
3. Alluvial fan
4.a true , When Polar Stratospheric Cloudss form above Antarctica, chlorine reservoir molecules bind to the icy particles that make up the clouds. Once this happens, complex chemical reactions begin to take place that result in molecules of chlorine gas (Cl2) being released from the reservoirs.
b. true After dark winter, where Cl2 molecules are stuck in polar vortex, without attacking ozone, around august when the sun begins to rise. As the first rays of spring sunlight strike the stratosphere high over the frozen continent, conditions change very rapidly. The UV rays coming from the sun strike the Cl2 molecules inside the vortex. The molecules break apart, releasing billions of chlorine atoms that begin an attack on ozone molecules
c. true.. a special airflow called as polar vortex occuring in antarica
d. true