When there are no more animals of a particular species left alive, that species is said to be extinct.
In the distant past, several species of animals became extinct through natural causes. There might have been a change in the climate of a particular region, and the plants or animals on which the species lived could have died out because of the change in the weather. Or one animal might have been destroyed by another that was stronger or faster.
But ever since human beings have been on Earth, and especially in the last hundred years, animal species have become extinct because of hunting, pollution, or the destruction of the places where they live.
So many animals are now in danger of extinction that a list is kept in a Red Book. unfortunately, the list gets longer every year.
1. Did Peter help the pupils to translate the text?, Who did help the students to translate the text?, Did Peter or Any helped the pupils to translate the text?, Did Peter help the pupils to translate the text, didn't he? 2. Did mother ask Mary to wash the plates?, Who did mother ask to wash the plates?, Did mother ask Mary or John to wash the plates?, Did mother ask Mary to wash the plates, didn't she? 3.Does my friend write a letter to his sister ?,Who does my friend write a letter to?, Does my friend write a letter to his sister or to his brother?, Does my friend write a letter to his sister doesn't he ? 4.Did Jane take3 books from the library? Who did take3 books from the library?, Did Jane take 3 or 5 books from the library?, Did Jane take3 books from the library, didn't she? 5. Do his cousins live in Moscow?, Who does live in Moscow?, Do his cousins or nephews live in Moscow?Do his cousins live in Moscow, don't they? 6. Will our grandfather and grandmother come tomorrow?, Who will come tomorrow?, Will our grandfather and grandmother come today or tomorrow ?Will our grandfather and grandmother come tomorrow, won't they? 7.Does Mary work in a shop? Where does Mary work in?, Does Mary work in a shop or in a drug store? Does Mary work in a shop, doesn't she?
When there are no more animals of a particular species left alive, that species is said to be extinct.
In the distant past, several species of animals became extinct through natural causes. There might have been a change in the climate of a particular region, and the plants or animals on which the species lived could have died out because of the change in the weather. Or one animal might have been destroyed by another that was stronger or faster.
But ever since human beings have been on Earth, and especially in the last hundred years, animal species have become extinct because of hunting, pollution, or the destruction of the places where they live.
So many animals are now in danger of extinction that a list is kept in a Red Book. unfortunately, the list gets longer every year.