Question

1. Fill-in-the Blank

Fill in the missing words in the paragraph using words from the list below.   

Unsustainable – pollutants – sustainability – water – poverty – renewable – wind – nutrient – biodiversity – pollution – population

Major causes of environmental problems are ___________________, ___________________ growth and ___________________ resource use. A key to most solutions is to apply the three principles of ___________________. First, we should rely more on ___________________ energy from the sun, the ___________________ and flowing ___________________ to meet most of our heating and electricity needs. Second, we should protect ___________________ by preventing the degradation of the earth’s species, ecosystems and natural processes. Third, we should not disrupt the earth’s ___________________ cycles by overloading them with ___________________ or by removing natural chemicals faster than the cycles can replace them. This requires relying more on ___________________ prevention and reducing the wasteful use of resources.     

Answer 1

Major causes of environmental problems are pollution,population, growth and unsustainable resource use. A key to most solutions is to apply the three principle of sustainability. First, we should rely more on renewable energy from the sun, the wind and flowing water to meet most of our heating and electricity needs. Second, we should protect biodiversity by preventing the degradation of the earth’s species, ecosystems and natural processes. Third, we should not disrupt the earth’s nutrient cycles by overloading them with pollutants or by removing natural chemicals faster than the cycles can replace them. This requires relying more on poverty prevention and reducing the wasteful use of resources.