The Amazon rainforest has some of the greatest biodiversity in the world, but many of the nutrients that support life in the Amazon come from a desert halfway around the world. The Bodele Depression, on the southern edge of the Sahara Desert in Chad, has dunes made not of sand but of diatomite, or the crushed remains of freshwater creatures that lived when the area was covered by a lake thousands of years ago. Strong winds sweep up dust from the dunes and carry it across the Atlantic Ocean on trade winds.

Which organism is negatively impacted by dust from the Sahara?

Much of the forest of the Amazon basin has been destroyed and fragmented due toQuestion 1Answera.Human activitiesb.Climate changec.Acid raind.Cultural belief

Comprehension Cloze (Fill in each blank with a suitable word).                                                   Tropical rainforests are found in areas where there is no dry season. They can be described in twowords: hot and (1) . Tropical rainforests cover only six percent of the earth’s                     (2) surface. Yet it is believed that they are home to half the world’s living species. Morespecies of all kinds live in rainforests (3) anywhere else on earth. However, every oneand a half seconds, rainforests equivalent to a football (4) in size are destroyed.Their (5)  is a major cause of the rising greenhouse gas levels in the atmosphere.           Even more importantly, it places them at the centre of one of the most important crises we               face today. Human activity, particularly the clearing of tropical rainforest, is (6)  for theextinction of many species.However, we can still be reasonably confident (7)  life on earth will recover. It has inthe past but it has (8)  millions of years.  For the children of (9)  andthe citizens of tomorrow, the destruction of our rainforests will be unthinkable. A vast irreplaceablesupply of food and medicine is (10)  destroyed; a spring of knowledge and beauty isdrying (11) . If we ignore what is (12) , these precious resources willbe lost forever.To help save our rainforests, we need to raise (13)  awareness and ensure everyonelearns more about rainforests. It is also important that governments work together to restoredamaged rainforests (14)  planting trees on land (15)  forests have beencut down. Together, we can still save the rainforests.

Today, the Amazon rainforest stands on soil that was manipulated by people thousands of years ago through their land use practices. Because of this fact, Dr. Sterling suggests that:1 pointWe need to question our definitions of natural and pristine and realize humans are part of nature and need to be incorporated into conservation.If the Amazon can recover from past human disturbance, it will recover from present human disturbance.The Amazon cannot be considered natural because of past human influence.The Amazon is not pristine habitat to be considered important for conservation.

All are parts of tropical rainforest except?a.Mauritaniab.Gabonc.Cameroond.Central Africa Republic