Câu 3: Write the correct form of the given words.1. The food source was cut off, so the plants were to produce anything. (ABLE)2. Risk can be reduced via cooperative activities and .  (COMMUNICATE)3. Freshwater is in high demand around the world despite the supply. (LIMIT)

Câu 8: Rearrange the words or phrases to make meaningful sentences.1. causing/our/serious/activities/are/to/illegal / ecosystems. / These / harms→ These illegal activities .2. regarded / biodiversity/as/the/ Land / of /loss. / clearing / cause/can/main/be→ Land clearing .3. the ice surface / difficult / Some/plants/conditions. /have/on/been/under/growing→ Some plants

2. ____________ utilizes kitchen waste in order to provide plants with the nutrients they need to grow strong. Purchasing locally grown productsCompostingRecyclingWater conservation

Rearrange the following sentences in the proper sequence to form a meaningful paragraph.A) The Centre has since issued rules for conservation and management, and chosen 115 water bodies in 24 States for protection support, but this is obviously too little.B) Loss of natural wetlands is an ongoing catastrophe in India.C) A decade ago, when the Salim Ali Centre for Ornithology and Natural History released a conservation atlas for all States using space applications.D) Moreover, research studies show that the concentration of heavy metals in such sites is leading to bioaccumulation, thus entering the plants and animals that ultimately form part of people’s food.E) It reported the tragic fact that 38% of wetlands had already been lost nationally; and shockingly, in some districts only 12% survived.DCABEECBADBCEADBDAECNone of these

Câu 3: Choose the letter to indicate the best option for each of the questions.1.The red squirrel in England is in danger of ________.A.growthB.extinctionC.damageD.destruction5.Naturally, many different species in this freshwater ecosystem share the same kind of ________.A.animalsB.foodC.plantsD.weather6.The national park was established to ______ the ecosystem of the limestone forests.A.attackB.abandonC.protectD.give up9.Ecotourism is a useful tool to manage and ______ natural and cultural landscapes.A.desertB.useC.releaseD.conserve14.Saltwater invasion can be quite _______ to coastal farmers who depend on fresh groundwater for livelihood.A.dangerB.endangerC.dangerousD.dangerously16.Scientists have been studying different ecologies _______ the 20th century.A.forB.sinceC.inD.by18.These animals consume the local vegetation, which helps reduce the ______ of wildfire.A.riskB.chanceC.opportunityD.case19.The search for the new kind of penguin in Antarctica has been ______ international media attention.A.attractB.attractedC.attractingD.to attract20.Some people ________ down lots of trees along the river for the past two weeks.A.cutB.are cuttingC.have been cuttingD.have cut21.The negative effects of eco-tourism occur when visitors go beyond the environment ________.A.protectionB.importanceC.destructionD.limit

SECTION 4Questions 31-32 | Choose the correct letter, A, B or C.What does the speaker focus on in this talk?(A) the causes of air and water pollution(B) the financial cost of too much pollution(C) a way to reduce the amount of pollutionHow does the speaker define “phytoremediation”?(A) growing food crops in polluted regions(B) the use of plants to eliminate pollution(C) reducing the pollution level in factoriesQuestions 33–40 | Complete the notes below.Write ONE WORD OR A NUMBER ONLY for each answer.Process: • plants are grown in water or 33- ………………………… that is polluted • remove pollution from the 34- ………………………… at the same time as they take in waterExample: • sunflower 35- ………………………… can either be eaten or used as a source of oil • also good at removing a pollutant called arsenic (a kind of 36- …………………………)Benefits: • using plants costs less than other 37- ………………………… of cleaning up pollution • example: alpine pennycress to remove cadmium - $ 38- ………………………… per acre (cost of traditional approach would be closer to $1,000,000)Drawbacks: • can take a long time compared with other approaches • example: alpine pennycress took up to 39- ………………………… years to remove cadmium • if ground is badly polluted, plants may not grow at allOverall: • phytoremediation is a good option and scientists want to make it more effective • Swedish scientists found floating hook moss can remove arsenic from water - up to 40- ………………………… percent of the pollutant in just one hour