Read the following passage and mark the letter A, B, C, or D on your sheet to indicate the correct answer to each of the questions from 40 to 47.
Microplastics are small plastic pieces less than five millimeters in size. Some microplastics are manufactured, such as the microbeads added to health and beauty products, while others result from larger plastics gradually breaking down. These plastics are pervasive in marine environmets, and they are known to harbour toxic substances such as heavy metals and phthalates.
Since many animals are known to eat microplastics, scientists are concerned about the toxic substances contained within them, as well as their capacity to accumulate within the animals and stop them from absorbing nutients correctly.
Even the largest marine creatures are vulnerable to tiny fragments of plastic littering the world’s oceans. A new study has found whales and whale sharks – the largest fish in the world – are ingesting microplastics in alarming quantities. These creatures are filter feeders, meaning they consume large quantities of small prey by straining them out of the ocean water. In the process, they swallow hundreds to thousands of cubic meters of water daily, meaning there ti the potential for them to take in substanial amounts of microplastic floating in the water.
Recently, plastic pollution has received a lot of attention for its effects on marine animals. In the UK, mircobeads have been banned, and other plastic items such as water bottles and disposable coffee cups have also been in the firing line. However, while scientists argee that plastic pollution is a problem for marine animals, there is still a lot they do not know about magnitude of its impact.
The word “magnitude” in paragraph 4 is closet meaning to _____.
A.importance
B.extent
C.tendency
D.history
Microplastics are small plastic pieces less than five millimeters in size. Some microplastics are manufactured, such as the microbeads added to health and beauty products, while others result from larger plastics gradually breaking down. These plastics are pervasive in marine environmets, and they are known to harbour toxic substances such as heavy metals and phthalates.
Since many animals are known to eat microplastics, scientists are concerned about the toxic substances contained within them, as well as their capacity to accumulate within the animals and stop them from absorbing nutients correctly.
Even the largest marine creatures are vulnerable to tiny fragments of plastic littering the world’s oceans. A new study has found whales and whale sharks – the largest fish in the world – are ingesting microplastics in alarming quantities. These creatures are filter feeders, meaning they consume large quantities of small prey by straining them out of the ocean water. In the process, they swallow hundreds to thousands of cubic meters of water daily, meaning there ti the potential for them to take in substanial amounts of microplastic floating in the water.
Recently, plastic pollution has received a lot of attention for its effects on marine animals. In the UK, mircobeads have been banned, and other plastic items such as water bottles and disposable coffee cups have also been in the firing line. However, while scientists argee that plastic pollution is a problem for marine animals, there is still a lot they do not know about magnitude of its impact.
The word “magnitude” in paragraph 4 is closet meaning to _____.
A.importance
B.extent
C.tendency
D.history
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