A line connecting all points along the same latitudinal angle is called a prime latitudinal angle. small circle. great circle. parallel. meridian

If a system responds to a change in input by moving further away from its equilibrium condition, what type of feedback has occurred? positive. neutral. negative

Name and describe the three main processes by which weathering can take place and explain the difference between weathering and erosion.

Describe why the type B (arid) climate on Koppen's classification is distributed along the 20-30 latitudes and which process(es) ensures that the climate is dry.

2) Explain why on the Hjulström diagram (relationship between particle size and the tendency to be eroded, transported, or deposited at different water velocities), the line representing critical entrainment velocity is curved and why it differs greatly from the line of fall velocity. Velocity (cm/s) 1000.0 500.0 200.0 100.0 50.0 20.0 10.0 5.0 Transportation 2.0 1.0 95 0.5 0.2 0.1 Silt Clay 0.002 0.001 0.005 0.01 0.02 0.05 0.1 Sand HJULSTROM DIAGRAM Erasion Entrainment Sedimentation (Fall Velocity) Particle size (mm) Gravel 10.0 20.0 50.0 100.0

Describe the effect of altitude on air temperatures and the processes) responsible for this relationship.

Analyze the picture below and identify the image as El Nino or La Nina. 70N- 50 (a) 30- 20 10N- 105 DRY WARM 405 40 (b) 106 205 319 406 COOL DRY (a) WAR DRY WARM COOL 120 WARM COOL DRY WET & WARM WARM DRY & COOL (b) WA WET COOL

Analyze the picture below and identify the image as El Nino, La Nina or Normal Monthly Sea Surface Temperature °C 20°N December 1998 30 (a) 10°N 0° 26 10°S 22 20°S 18 December 1993 20°N 30 10°N (b) 26 0° 10°S 22 20°S 18 December 1997 20°N 30 10°N (c) 26 0° 10°S 22 20°S 18 100°E 140°E 180° 140°W 100°W 60°W (a) (b) (c)

Analyze the picture below and identify the image as El Nino, La Nina or Normal (a) (b) (၁) Degree Celcius Degrees Celcius Degrees Celcius 34 30 24 22 20 18 34 32 30 # # # ** 24 22 20 18 34 32 30 **** 28 26 24 22 20 18 125 (a) 125 125 130 130 ort SET DET Sea Surface Temperature at the Equator, December 2014 145 150 155 160 165 170 175 ORT OCT 165 -160 -155 150 -145 DET SET -125 St ort Degrees Longitude Sea Surface Temperature at the Equator, December 2015 OST 145 OFT SEX 125 ott SEE ort Degrees Longitude Sea Surface Temperature at the Equator, December 2016 150 091 SST 265 Oct 175 OCT SET set 091 155 150 Degrees Longitude DET SET Opt SPE -125 (b) 120 Stt sot ott (၁)