vahidvh

Member for

5 years 5 months

My essays:

• Like many creatures, humpback whales migrate long distances for feeding and mating purposes. How animals manage to migrate long distances is often puzzling. In the case of humpback whales, we may have found the answer: they may be navigating by the stars, 71
• Pterosaurs were an ancient group of winged reptiles that lived alongside the dinosaurs. Many pterosaurs were very large, some as large as a giraffe and with a wingspan of over 12 meters. Paleontologists have long wondered whether large pterosaurs were cap 78
• Agnostids were a group of marine animals that became extinct about 450 million years ago. Agnostid fossils can be found in rocks in many areas around the world. From the fossil remains, we know that agnostids were primitive arthropods-relatives of modern- 80
• At the end of the Triassic period 200 million years ago, there was a mass-extinction event that caused the extinction of more than half of all living species. It was this extinction event that allowed dinosaurs to become the dominant species for the next 68
• One of the threats to endangered sea turtle species is the use of nets by commercial shrimp-fishing boats. When turtles get accidentally caught in the nets, they cannot rise to the surface of the ocean to breathe, and they die. Some people suggest that t 76
• One of the threats to endangered sea turtle species is the use of nets by commercial shrimp-fishing boats. When turtles get accidentally caught in the nets, they cannot rise to the surface of the ocean to breathe, and they die. Some people suggest that t 76
• Because the world is changing so quickly, people now are less happy or less satisfied with their lives than people were in the past. 66
• Because the world is changing so quickly, people now are less happy or less satisfied with their lives than people were in the past. 66
• TPO 27The little ice age was a period of unusually cold temperature in many parts of the world that lasted from about the year 1350 until 1900CE. There were unusually harsh winters, and glaciers grew larger in many areas. Scientist have long wondered what 76
• Young people nowadays do not give enough time to helping their communities 60

My speaking:

• TPO 27 - Question 4Swarm Intelligence 70
• do you agree or disagree with the statement? Parents should be involved in the process of helping their children to choose a university. 82
• TPO27-1- Talk about a popular actor, musician or artist whose work you do not admire. Explain why you do not like this person's work. 88
• TPO 27 - Question 1Talk about a popular actor, musician, or artist whose work you do not admire. Explain why you do not like this person’s work. Use specific details and reasons in your response. 76