Theme 1 Tropical Environments

Which of the below statements about the ITCZ is INACCURATE?

• The movement of the ITCZ lags behind about one month from the migration of the thermal equator.

• Due to the continuous uplift of air resulting from the convergence of the NE and SE trade winds in the ITCZ, heavy convective rainfall is frequently experienced.

• The presence of the ITCZ influences both the precipitation and temperature of the locality.

• The ITCZ is not always found along the equator, but always resides in the hemisphere experiencing summer.

Which of the options below is likely the ODD one out?

• Polar easterlies

• Anti-trades

• Mid-latitude westerlies

• Trade wind

Which of the below concepts is the ODD one out?

• Wetted Perimeter

• Channel Width

• Saltation

• Longitudinal Profile

The hydraulic radius of a river is calculated by...

• dividing the channel's wetted perimeter by its cross sectional area

• dividing the channel's width by the channel's depth

• dividing the total length of the drainage channels by the drainage basin area

• dividing the channel's cross section area by its wetted perimeter

Which type of channel pattern is likely to dominate in the tropical rainforest environment?

• Ephemeral

• Straight

• Meandering

• Braided

Which of the below statements about weathering is accurate?

• Biological weathering refers to the weakening and subsequent disintegration and decomposition of rock by plants, animals and microbes.

• The process of physical weathering is most pernicious deep below the Earth's surface.

• Carbonation-solution occurs most readily on rocks with minerals like orthoclase fledspar.

• Freeze thaw activity is active in places like the arid Antarctica.

Which of the below statements on soil development is INACCURATE?

• Although soil can be formed and reformed, it is mostly considered a non-renewable resource.

• Waterlogged soil tends to contain a high proportion of organic matter as opposed to soils that are well drained.

• Soils tend to be deepest in warm, humid regions and shallowest in cold, dry regions.

• Unlike vegetation, animals do not contribute to the development of soils.

Identify the soil forming process most likely to occur in the desert climates?

• Calcification

• Salinisation

• Laterisation

• Salt Crystallisation

Which of the below process is NOT considered an erosional process by water?

• Splash Erosion

• Rainwash

• Saturated Overland Flow

• Rillwash

Which of the below is a process of chemical weathering?

• Exfoliation

• Hydrolysis

• Insolation weathering

• Laterization