Complex sentence: The population in the two key east African lakes, Nakuru and Bogoria, have been adversely affected in recent years by suspected heavy metal poisoning and its primary African breeding area in Lake Natron is currently under threat by a proposed soda ash plant by Tata Chemicals.
Split into simpler sentences: The population in the two key east African lakes, Nakuru and Bogoria, have been adversely affected in recent years by suspected heavy metal poisoning. Its primary African breeding area in Lake Natron is currently under threat by a proposed soda ash plant by Tata Chemicals.