The pesticides are _________________ harmful, so they shouldn’t be used in the field. (environment)
 

Did the machine have a good _________________? (effectively)

Did the machine have a good _________________? (effectively)

Environmental       ______________ is everybody’s responsibility (protect)

      ______________ the act of planning trees in order to make a forest. (forest)

They are talking about      ______________ .problems. (environment)

      ______________ the act of planning trees in order to make a forest. (forest)

That product is least _________________ to the environment. (harm)