Answer: maybe a creature that can fly and swim
Explanation:
Acid rain from Los Angeles changed the chemistry of the river, resulting in the death of many fish.Due to human activities in Los Angeles, pollution is not anymore shocking. The acid rain would be distributed to the river which would change the environment of the aquatic life.
D. An X-Y coordinate system, with the origin at 0° latitude and 0° longitude
Well, if you make a limestone tower and a acid rain falls onto it, the tower will dissolve and then you won't have a tower
