1.4 Refer to FIGURE 1.4 which illustrates the La Niña process. 1.4.1 Why is the La Niña process described as a weather pattern? $$ (1 imes 1) $$ 1.4.2 $$ \begin{array}{l} ext { State TWO pieces of evidence from FIGURE } 1.4 ext { that indicate that the } \ ext { La Niña process is being illustrated. } \ (2 imes 1)\end{array} $$ $$ \begin{array}{ll} ext { 1.4.3 } & ext { Discuss why the eastern half of Australia would receive heavy rain } \ ext { during the La Niña process. } \ (3 imes 2)\end{array} $$ $$ \begin{array}{ll} ext { 1.4.4 } & ext { Explain the economic impact that the La Niña process would have on } \ ext { Africa. }\end{array} $$

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1.4 Refer to FIGURE 1.4 which illustrates the La Niña process. 1.4.1 Why is the La Niña process described as a weather pattern? $$ (1 	imes 1) $$ 1.4.2 $$ \begin{array}{l}	ext { State TWO pieces of evidence from FIGURE } 1.4 	ext { that indicate that the } \ 	ext { La Niña process is being illustrated. } \ (2 	imes 1)\end{array} $$ $$ \begin{array}{ll}	ext { 1.4.3 } & 	ext { Discuss why the eastern half of Australia would receive heavy rain } \ 	ext { during the La Niña process. } \ (3 	imes 2)\end{array} $$ $$ \begin{array}{ll}	ext { 1.4.4 } & 	ext { Explain the economic impact that the La Niña process would have on } \ 	ext { Africa. }\end{array} $$

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To address the questions regarding the La Niña process, let's break down each part step by step.

### 1.4.1 Why is the La Niña process described as a weather pattern? 
The La Niña process is described as a weather pattern because it involves systematic changes in atmospheric and oceanic conditions that affect global weather. Specifically, it is characterized by cooler ocean temperatures in the central and eastern Pacific Ocean, which leads to alterations in wind patterns, precipitation, and temperature distributions across various regions. These changes can result in significant weather events, such as increased rainfall in some areas and droughts in others.

### 1.4.2 State TWO pieces of evidence from FIGURE 1.4 that indicate that the La Niña process is being illustrated.
While I cannot see FIGURE 1.4, typical evidence that might indicate the La Niña process includes:
1. **Cooler Sea Surface Temperatures**: The figure may show a map indicating lower temperatures in the central and eastern Pacific Ocean.
2. **Increased Rainfall in Australia**: The figure might illustrate areas of heavy rainfall or flooding in the eastern part of Australia, which is a common effect of La Niña.

### 1.4.3 Discuss why the eastern half of Australia would receive heavy rain during the La Niña process.
The eastern half of Australia experiences heavy rain during the La Niña process due to the following reasons:
1. **Enhanced Trade Winds**: During La Niña, trade winds strengthen, pushing warm water towards the western Pacific. This leads to a rise in sea surface temperatures in that region, which increases evaporation and moisture in the atmosphere.
2. **Shift in Weather Patterns**: The increased moisture in the atmosphere results in more cloud formation and precipitation. The prevailing winds carry this moisture towards the eastern coast of Australia, leading to heavy rainfall.
3. **Low-Pressure Systems**: The La Niña conditions can create low-pressure systems that enhance storm activity, further contributing to increased rainfall in eastern Australia.

### 1.4.4 Explain the economic impact that the La Niña process would have on Africa.
The economic impact of the La Niña process on Africa can vary significantly depending on the region, but some potential effects include:
1. **Agricultural Disruption**: La Niña can lead to increased rainfall in some areas, which may cause flooding and disrupt agricultural activities. This can result in crop damage, reduced yields, and food shortages, impacting local economies reliant on agriculture.
2. **Drought in Other Regions**: Conversely, some regions may experience drought conditions due to altered weather patterns. This can lead to water shortages, affecting both agriculture and livestock, and can have severe economic consequences for communities dependent on these resources.
3. **Infrastructure Damage**: Heavy rains and flooding can damage infrastructure, such as roads, bridges, and buildings, leading to costly repairs and economic losses. This can hinder trade and transportation, further impacting economic stability.

In summary, the La Niña process has significant implications for weather patterns, agriculture, and economic conditions in various regions, including Australia and Africa.
The La Niña process is a weather pattern because it involves changes in ocean and atmospheric conditions that affect global weather. It causes cooler temperatures in the central and eastern Pacific, leading to increased rainfall in some areas, like the eastern half of Australia, and potential droughts elsewhere. In Australia, this results in heavy rain due to stronger trade winds and enhanced moisture, while in Africa, it can disrupt agriculture and cause infrastructure damage, leading to economic challenges in both regions.

1.4 Refer to FIGURE 1.4 which illustrates the La Niña process.
1.4.1 Why is the La Niña process described as a weather pattern?
1.4.2 $ñ$
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1.4 Refer to FIGURE 1.4 which illustrates the La Niña process. 1.4.1 Why is the La Niña process described as a weather pattern? 1.4.2 ñ ñ ñ