Module 4: Introduction to South Africa Weather and Climate
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Questions and Answers

What are the key characteristics that define a climate region?

  • Temperature and wind patterns
  • Wind patterns and humidity levels
  • Temperature and cloud cover
  • Temperature and rainfall averages (correct)

Where are Equatorial regions primarily located in Africa?

  • Northern Africa
  • Southern Africa
  • Central Africa and Australia
  • Central Africa and the southern coast of West Africa (correct)

What is the main form of precipitation in Equatorial areas?

  • Hailstorms
  • Blizzards
  • Afternoon convection storms (correct)
  • Tornadoes

What is the average annual rainfall in Equatorial regions?

<p>1,500 millimeters (B)</p> Signup and view all the answers

Which region in Africa experiences limited temperature variation with only a 3°C annual range?

<p>Equatorial regions (A)</p> Signup and view all the answers

In which part of Africa are Tropical regions mainly found?

<p>East Africa and Congo (A)</p> Signup and view all the answers

What is the annual temperature range in the Humid subtropical region?

<p>13°C (D)</p> Signup and view all the answers

Where is the Highveld region mainly situated?

<p>Southern Limpopo (B)</p> Signup and view all the answers

What is the average summer temperature in the Semi-arid and desert region?

<p>30°C (A)</p> Signup and view all the answers

Which region receives around 1,000 millimeters of rain annually primarily during the summer season?

<p>Humid subtropical (A)</p> Signup and view all the answers

What is the typical rainfall pattern in the Mediterranean climate region?

<p>Common in winter (C)</p> Signup and view all the answers

In which region are nighttime temperatures around 5°C?

<p>Semi-arid and desert (A)</p> Signup and view all the answers

What type of rainfall is predominant in the equatorial regions according to the text?

<p>Heavy convection rain (C)</p> Signup and view all the answers

What role does latitude play in affecting temperature and rainfall according to the text?

<p>Creates convection currents of air (A)</p> Signup and view all the answers

What is the average winter temperature in the Humid subtropical region?

<p>13°C (D)</p> Signup and view all the answers

Which region experiences dry winters and annual summer rainfall ranging from 400 to 790 millimeters?

<p>Highveld (B)</p> Signup and view all the answers

What type of precipitation occurs when air rises up a mountain and condenses due to the wet adiabatic lapse rate?

<p>Orographic rain (A)</p> Signup and view all the answers

Which factor explains why coastal areas are more likely to receive rain?

<p>Ocean currents (A)</p> Signup and view all the answers

What type of rain is received by areas in the path of mid-latitude cyclones carried by westerly winds?

<p>Frontal rain (D)</p> Signup and view all the answers

What causes noticeable differences between summer and winter seasons as one moves away from the equator?

<p>Seasonal changes in climate (B)</p> Signup and view all the answers

Which local factor affects temperature by causing cold mountain winds to blow down slopes at night?

<p>Aspect of the place (C)</p> Signup and view all the answers

What is one effect of subsiding air warming up as it descends?

<p>Increased water holding capacity (D)</p> Signup and view all the answers

What is the result of air moving from a high-pressure area to a low-pressure area above the Earth's surface?

<p>Rising air and low pressure formation (B)</p> Signup and view all the answers

What phenomenon occurs when cold, dense air subsides toward the Earth's surface?

<p>High-pressure area development (C)</p> Signup and view all the answers

What allows condensation and rainfall to occur in the atmosphere?

<p>Saturated air with water vapor (A)</p> Signup and view all the answers

What is a significant factor contributing to noticeable temperature differences in different regions across Africa?

<p>Aspect of the place facing equator or away from it (C)</p> Signup and view all the answers

How do wind-driven ocean currents influence the air above them?

<p>Warm ocean currents have warm air above them, while cold ocean currents have cold air above them. (A)</p> Signup and view all the answers

What role do onshore winds play in transporting moisture to coastal areas?

<p>They bring moisture to coastal areas, making inland places drier. (A)</p> Signup and view all the answers

How do warm ocean currents affect precipitation in warm ocean maritime climates?

<p>They result in more rain as warmer air can hold more water vapor. (B)</p> Signup and view all the answers

Which of the following is NOT influenced by the Benguela Current according to the text?

<p>Mozambique (D)</p> Signup and view all the answers

What is the primary source of precipitation over Earth's landmasses?

<p>Evaporation from the ocean (D)</p> Signup and view all the answers

How do land and sea breezes work alongside each other?

<p>By using the pressure gradient formed when air cools down and heats up (A)</p> Signup and view all the answers

What is the rate at which rising air cools known as?

<p>Dry Adiabatic Lapse Rate (B)</p> Signup and view all the answers

What is the term for the area formed by the convergence of tropical easterlies?

<p>ITCZ (B)</p> Signup and view all the answers

What does the subsiding air between 15° and 30° latitude create?

<p>Subtropical High-pressure Belts (B)</p> Signup and view all the answers

Which process leads to dry conditions between 15° and 30° latitude?

<p>Subsidence Cooling (B)</p> Signup and view all the answers

What type of rain is experienced in the Western Cape during winter?

<p>Frontal Rain (D)</p> Signup and view all the answers

In which region does the subsiding air contribute to the creation of the Sahara Desert?

<p>30° N - 40° N (B)</p> Signup and view all the answers

What influences the seasonal changes in the position of the ITCZ and high-pressure zones in Africa?

<p>Westerly Winds (C)</p> Signup and view all the answers

What is the impact of convection currents near the equator?

<p>Creation of Low-Pressure Areas (A)</p> Signup and view all the answers

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