Decide if the sentences below are true ( T ) or false ( F ) according to the text. ( ) Smoke from factories and exhaust from traffic are examples of air pollution. ( ) Aircraft noise is an example of air pollution. ( ) Oil from oil spills and sewage are examples of greenhouse pollution. ( ) Medical sources and nuclear power plants are examples of radioactive materials. ( ) Advertising signs are examples of light pollution. Choose the alternative which presents the correct sequence, from top to bottom.

According to the text, the kind of pollution that is thought to cause the most death and disease is:

According to the text, we can infer that:

Based on the text, which alternative contains the correct effect of artificial light pollution?

Analyze the sentences below about the text. 1. Carbon dioxide is a kind of radioactive material. 2. Primary air pollutants are chemicals. 3. Radioactive pollution is a less outstanding kind of pollution. 4. Artificial lighting has health effects on animals and, can affect sleeping and waking rhythms. 5. Water vapor, carbon dioxide, methane, and ozone are greenhouse gases. Choose the alternative which contains the correct affirmatives:

Study these sentences bellow and decide if they are true ( T ) or false ( F ), according to structure and grammar use. ( ) After today I will had worked here for ten years. ( ) What did he get for Christmas? she asked. ( ) In two days, I will be the fifth person to land on the moon. ( ) Gas in Alaska is the most cheapest gas in all the world. ( ) The work has to be done by Monday. Choose the alternative which presents the correct sequence, from top to bottom.

Choose the alternative which presents the cor- rect words that are missing in the 3rd paragraph of the text.

Study these sentences: 1. The word largest (4th paragraph) is an adjec - tive in the superlative form. 2. There is and there are are the present tense of there to be . 3. These (5th paragraph) has its singular form as that . 4. The negative form of the sentence Artificial lighting has health effects on humans and ani - mals ., is Artificial lighting doesn’t have health effects on humans and animals . 5. Disruption (7th paragraph) means a problem which interrupts an event . Choose the alternative which contains the correct affirmative:

Study the underlined words in the following para - graph from the text: “In animals, it can cause communication, reproductive, and navigation problems – they have difficulty fin - ding their direction. Sonar has even caused whales to beach themselves because they respond to the sonar as if it were another whale. ” Choose the correct alternative.

Choose the alternative that presents the main purpose of The Communicative language teaching (CLT) method of Language Teaching.