Final answer:
The main answer is that tropical rainforests receive the most precipitation on average. They are located near the equator and experience heavy rainfall due to the heat causing air to rise and lose its ability to hold moisture, leading to frequent rainstorms.
Step-by-step explanation:
The area of Earth that receives the most precipitation on average is c) Tropical rainforests. These regions are located near the equator and are subject to intense sunlight, which heats the air, causing it to rise and cool. This process decreases the air's ability to hold water vapor, resulting in frequent and heavy rainstorms. This precipitation pattern is part of the global wind circulation cells. Tropical forests, covering only about 6% of the Earth's surface, receive almost half of the world's rainfall, highlighting their significance in terms of precipitation levels. Rainfall amounts can reach up to 22,500 mm during peak monsoon season in some tropical regions, which is significantly higher than other parts of the world such as polar regions, deserts, or even some mountainous regions.Tropical forests are not only areas of high precipitation but are also critical for their biodiversity and the ecological services they provide. They are sometimes known as 'nature's pharmacy' due to the diverse potential for discovering new medicinal compounds within their ecosystems. In contrast, deserts such as North Africa and the Middle East have much less rainfall, while polar regions like Antarctica are also considered deserts because they receive very low precipitation annually.