3.5 Select the correct term/concept in brackets. Write only the 3.5.1 \( \begin{array}{l}\text { Global air circulation is the (large/small) scale circulation } \\ \text { of air across the globe. } \\ \text { 3.5.2 } \begin{array}{l}\text { The Inter-Tropical convergence zone is found along the } \\ \text { (Sub-tropical high/Equatorial low) pressure belt. }\end{array} \\ \text { Trade winds are winds that blow from the sub-tropical high } \\ \text { pressure systems north and south of the equator toward } \\ \text { the (equatorial low/polar high) pressure system. }\end{array} \) 3.5.4 \( \begin{array}{l}\text { The sub-tropical high-pressure zone is commonly referres } \\ \text { to as (doldrums/conundrums) }\end{array} \) 3.5.5 A polar high-pressure result from cool descending air tha forms a series of high pressures at the (poles/polar front)

Let's go through each of the statements step by step to select the correct terms/concepts. ### 3.5.1 **Statement:** Global air circulation is the (large/small) scale circulation of air across the globe. **Correct Term:** **large** **Explanation:** Global air circulation refers to the large-scale movement of air that occurs across the entire planet. ### 3.5.2 **Statement:** The Inter-Tropical convergence zone is found along the (Sub-tropical high/Equatorial low) pressure belt. **Correct Term:** **Equatorial low** **Explanation:** The Inter-Tropical Convergence Zone (ITCZ) is a region near the equator where trade winds from the Northern and Southern Hemispheres meet, creating a low-pressure area. ### 3.5.3 **Statement:** Trade winds are winds that blow from the sub-tropical high pressure systems north and south of the equator toward the (equatorial low/polar high) pressure system. **Correct Term:** **equatorial low** **Explanation:** Trade winds blow from the high-pressure areas in the subtropics towards the low-pressure area at the equator. ### 3.5.4 **Statement:** The sub-tropical high-pressure zone is commonly referred to as (doldrums/conundrums). **Correct Term:** **doldrums** **Explanation:** The term "doldrums" is often used to describe the equatorial region where there is little wind, but it can also refer to the areas of high pressure in the subtropics where winds are light. ### 3.5.5 **Statement:** A polar high-pressure results from cool descending air that forms a series of high pressures at the (poles/polar front). **Correct Term:** **poles** **Explanation:** Polar high-pressure systems are formed at the poles due to the cooling and descending air. ### Summary of Answers: - 3.5.1: **large** - 3.5.2: **Equatorial low** - 3.5.3: **equatorial low** - 3.5.4: **doldrums** - 3.5.5: **poles**