Humans can create light pollution, a problem that happens when too much city light escapes into the night sky. describe two examples of problems caused by light pollution. (cite 1)

Following are two examples of problems caused by light pollution.

Light pollution sometimes makes it difficult to carry out astronomical activities. Light pollution disturbs the living of nocturnal animals by making the night appear like a day.

Explanation:

For stargazers and astronomical hobbyists, light pollution plays the role of a major obstacle. Excessive light reflects from the particulate matter in the atmosphere making the sky appear like opaque glass.In such a situation, getting to observe the spatial objects properly is impossible. Also, nocturnal beings that set out in the search of food in the night are disturbed by the pollution caused by the light.

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast. 

1. antarctica2. saudi arabia