Cover of the textbook On Screen B1+ - Student's Book

The key answer of exercise 4

The key to exercise solutions in chapter 5a - Reading for the textbook On Screen B1+ - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing

Question

In your own words answer the questions.

Answer

  1. Light pollution is when there is too much artificial light at night.
  2. It affects people and animals by interfering with natural cycles of sleep and activity and causes confusion and exhaustion.
  3. We can dim lights that we need and switch off lights that we don't need.