Complete the sentences with the Present Perfect Simple, the Present Perfect Continuous or the Past Simple of these verbs [begin] [cause] [do] [finish] [increase] [rise] [study] [take]

1.The team of biologists
the effects of pollution on plants for years.

2.The government
measure to limit sea pollution by passing a new law.

3.Overfishingsome species to become extinct over the years.

4.Ecotourismto become popular when i was at university.

5.The use of fossil fuels
the amounts of carbon dioxide in the atmosphere.

6.The scientistresearch
on coral reefs since he left university.

7.Sea levelsgradually in the last 10 years.

8.The journalist
writting an article on the Amazon a month ago.​

The sentences has been completed

Explanation:

1.The team of biologists HAS BEEN STUDYING the effects of pollution on plants for years.

2.The government HAS TAKEN

measure to limit sea pollution by passing a new law.

3.Overfishing HAS CAUSED some species to become extinct over the years.

4.Ecotourism BEGAN to become popular when i was at university

5.The use of fossil fuels HAS INCREASED the amounts of carbon dioxide in the atmosphere.

6.The scientist BEGAN research on coral reefs since he left university.

7.Sea levels HAVE RISEN gradually in the last 10 years.

8.The journalist FINISHED

writting an article on the Amazon a month ago.​

particulars about treasure island, from the beginning to the end, keeping nothing back but the bearings of the island, and that only because there is still treasure not yet lifted, i take up my pen in the year of grace and go back to the time when my father kept th

explanation: