The things which are thrown away after one use are called

  • disposables
  • recycle able
  • reduce able
  • reusable

Over-exploitation includes excessive

  • energy usage
  • hunting
  • both a and b
  • plantation

Marine animals specially fish when live in factory discharged waste water tends to get poisonous for humans and can cause

  • death
  • diseases
  • both a and b
  • development

A global phenomenon involving the warming of earth's climate is termed as

  • global warming
  • greenhouse effect
  • over-exploitation
  • pollution

Clearing forest can lead to washing away of soil called

  • erosion
  • landslides
  • weathering
  • all of them

Madagascar rosy periwinkle is used in the treatment of

  • blood cancer
  • AIDS
  • Hepatitis
  • polio

Animal which were first hunted for food now being hunted for sport is

  • bison
  • tiger
  • camel
  • leopard

Buried waste contain

  • toxic chemicals
  • bacterial
  • both a and b
  • useful minerals

Rats, pigs and monkeys brought by human on island eaten eggs of

  • dodo
  • duckbill
  • ostrich
  • hen

By conserving environment there could be achievement of

  • sustainable development
  • dynamic equilibrium in environment
  • maintained ecosystem
  • conserved energy resources

Calophyllum tree in Sarawak has ability to treat

  • blood cancer
  • AIDS
  • Hepatitis
  • polio

A gas which is major gas in trapping heat and prevent it from escaping is

  • oxygen
  • ozone
  • carbon dioxide
  • nitrogen

Maintenance of oxygen and carbon dioxide in air is done by

  • forests
  • humans
  • animals
  • global warming

In incineration plants not recycled waste is

  • burned
  • filter
  • reduced
  • discharged

Island of Mauritius have a bird once called

  • dodo
  • duckbill
  • ostrich
  • hen

The introduction of foreign specie will upset dynamic equilibrium of

  • water
  • air
  • ecosystem
  • climate

Oil spill damage the animal's

  • fur
  • feathers
  • both a and b
  • lungs

If ice on mountains will continue to melt the levels in sea will

  • rise
  • lower
  • be same
  • reduce

Aquatic and marine birds get harmed when they come in contact with

  • oil spill
  • salty water
  • big fish
  • boats

When forests are cleared on a very large scale by cutting or burning them down it is

  • forestation
  • deforestation
  • plantation
  • incantation
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