The reason why Lake Jackson disappeared is A. opening of a sinkhole.
Pollution, high atmospheric temperature, and absorption of water by the land aren't enough for an entire lake to disappear, however, a sinkhole may contribute to that. There are two major depressions (sinkholes) in this lake in Florida, and they even have their own names - Porter Sink and Lime Sink.
A. I just took a quiz on it and A was my answer
Answer:
A sloping surface separating air masses that differ in temperature and moisture content is called a front.
The answer is c, positron.