Democratia-Aqua-Technica
YIP – Your Ideas to Practice
Lake Bosomtwe
Lake Bosomtwe is one of the six meteoritic lakes in the world. It is the only natural lake in Ghana specifically located in the Ashanti Region. It is situated within an ancient impact crater that is about 10.5 kilometers (6.5 mi) in diameter. The depth of crater is approximately 380 m (1,250 ft), but, if counted together with the depth of lake sediments – 750 m (2,460 ft).
Before the asteroid impact, the area was a lush rainforest filled with animals. Following the impact, the resulting crater filled with water forming Lake Bosomtwe. Periods of heavy rainfall filled the crater with water, causing the lake level to rise above the lowest points of the rim. Such periods are evidenced from fossils of fish found on hilltops. Water even flowed from the basin through an overflow channel. However, there were also times when the water level was so low that the rainforest entered the basin rendering the lake only a small pond. Such a period, according to legend and now proved by paleoclimate records, lasted until about 300 years ago.
Tasks: Lake Bosomtwe
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1. Answer the question: What was Lake Bosomtwe formed from?
2. What is the diameter of the Lake Bosomtwe?
3. What is the circumference of Lake Bosomtwe?
4. What is the ecological environment around Lake Bosomtwe?
5. What sources of pollution may affect the water quality of Lake Bosomtwe?
6. What is the best way to protect the water quality of Lake Bosomtwe?