Task 2. Read the text again, and decide if the sentence (1-5) are T (true), F (false) or DS (doesn’t say) 1. Cetaceans are a type of mammal. …

2. Dolphins use their blowholes to breathe underwater. …

3. Small pods are more common than large ones. …

4. Scientists found out that dolphins used ‘names’ in 2013. …

5. Martina has participated in studies about dolphin communication. …​
Task 2. Read the text again, and decide if the sentence (1-5) are T (true), F (false) or DS (doesn’t say)

1. Cetaceans are a type of mammal. …

2. Dolphins use their blowholes to breathe underwater. …

3. Small pods are more common than large ones. …

4. Scientists found out that dolphins used ‘names’ in 2013. …

5. Martina has participated in studies about dolphin communication. …​
Task 2. Read the text again, and decide if the sentence (1-5) are T (true), F (false) or DS (doesn’t say)

1. Cetaceans are a type of mammal. …

2. Dolphins use their blowholes to breathe underwater. …

3. Small pods are more common than large ones. …

4. Scientists found out that dolphins used ‘names’ in 2013. …

5. Martina has participated in studies about dolphin communication. …​

Read the text hous
2 galse that for hous dolphins information Monday biologistMartina has participated in studies about dolphin communication. …​
Task 2. Read the text again, and decide if the sentence (1-5) are

Task 2 asks you to read the text again and decide if the sentences (1-5) are true (T), false (F), or if the text doesn't provide enough information to answer (DS).

Let's go through each sentence one by one and analyze it based on the information given in the text:

1. Cetaceans are a type of mammal.

In the text, it is mentioned that dolphins are part of the cetacean family, which includes whales and porpoises. Since dolphins are a type of cetacean, and cetaceans are mammals, we can say that this sentence is true (T).

2. Dolphins use their blowholes to breathe underwater.

The text states that dolphins have blowholes on the top of their heads, through which they breathe. Therefore, this sentence is true (T).

3. Small pods are more common than large ones.

The text does not provide any information about the frequency of small or large pods. It is not mentioned whether one is more common than the other, so we cannot determine if this sentence is true or false based on the given information. Therefore, the answer is that it doesn't say (DS).

4. Scientists found out that dolphins used ‘names’ in 2013.

The text mentions that scientists found out that dolphins use specific whistles to identify each other, similar to humans using names. However, the text does not mention any specific year such as 2013. Therefore, this sentence is false (F) because the year 2013 is not mentioned in the text.

5. Martina has participated in studies about dolphin communication.

The text does not mention anything about Martina's participation in any studies. Since there is no information provided, we cannot determine if this sentence is true or false. Therefore, the answer is that it doesn't say (DS).

To summarize, the answers to the sentences are:
1. T (true)
2. T (true)
3. DS (doesn't say)
4. F (false)
5. DS (doesn't say)