`#A_Hy`

42. Poisons which are used on one species can enter the  food chain and affect other species.

43. A chemical    pesticide may destroy harmful insects, but it often has undesirable side-effects.

44. A great deal of fertilizer is used to increase the yield of crops. But it then runs

45. Your car residues  may look OK, but in fact it is part of the biggest and fastest growing global source of pollution.

46. It is important to preserve as many species of plant and animal as we can, to maintain conservation  

47. Most of the wildlife of a country like Britain has long been destroyed. The priority now is the biodiversity of what remains.

48. Conservationists are very suspicious of genetically modified crops; they fear “genetic pollution” of other species.

49. A .wind turbine produces totally clean energy. But some people think they are too big, noisy and ugly.

50. Oil can only be used once, whereas renewable   sources of energy like wind and the sun go on for ever.

51. The use of rechargeable   batteries, for example in personal stereos, helps to reduce waste and pollution.

52. The wind turbine of energy is very high in the rich, developed countries.

53. In many places the destruction of forest has lead to serious erosion of the soil, and sometimes to flooding.

Mk xin CTLHN a

42- Poisons which are used on one species can enter the food chain and affect other species.

43- A chemical pesticide may destroy harmful insects, but it often has undesirable side-effects.

44- A great deal of fertilizer is used to increase the yield of crops. But it then runs... ?

45- Your car residues may look OK, but in fact it is part of the biggest and fastest growing global source of pollution

46- It is important to preserve as many species of plant and animal as we can, to maintain conservation

47- Most of the wildlife of a country like Britain has long been destroyed. The priority now is the biodiversity of what remains.

48- Conservationists are very suspicious of genetically modified crops; they fear "genetic pollution" of other species.

49- A wind turbine produces totally clean energy. But some people think they are too big, noisy and ugly.

50- Oil can only be used once, whereas renewable sources of energy like wind and the sun go on for ever.

51- The use of rechargeable batteries, for example in personal stereos, helps to reduce waste and pollution.

52- The wind turbine of energy is very high in the rich, developed countries.

53- In many places the destruction of forest has lead to serious erosion of the soil, and sometimes to flooding.