GRADE 10 SCIENCE: MORE WEATHER REVIEW-- ANSWERS
Winds which mainly blow in a constant direction, over large areas of the globe (within certain “bands” of latitude.)
High pressure areas exist in cold areas such as the poles, low pressure areas exist in hot areas like the equator
Air flowing from high pressure (cold) areas to low pressure (warm) areas
Winter solstice (sun over tropic of Capricorn), equinox (equator), summer solistice (sun over tropid of cancer, equinox
The Earth is tilted about 23 degrees on its axis. During summer, the Northern Hemisphere is tilted towards the sun: sun’s rays are more direct.
Large masses of ocean water which mainly move in one direction, although some variations which exist
-variations in salinity (fresh vs salt water)
-pull of gravity from the moon
-rotation of the earth (affect direction)
-burn less gasoline, fossil fuels
-use sulphur-reduced fuels
-use “scrubbers” to clean up pollution
-liming of lakes
-using catalytic converters to convert NOx in car exhaust to nitrogen
i. What conditions are necessary for tornados to occur?
ii. What is the main ‘tornado season?’
iii. Where do most of the world’s tornados occur?
Hot temperatures, turbulent weather conditions, cumulonimbus clouds, a warm front meeting a cold front
Spring time (may – july) in central midwest
Increases temperature absorption by Earth and atmosphere because less solar radiation is reflected by the ice and snow