Q58.
a.-underground contamination of water
  -they alter immune, endocrine and nervous systems

b.-manure
  -biosolids
  -compost
  -organic matter

c.-Manure contains many nutrients that help plants grow.
  -It also has the benefit of releasing nutrients for immediate use while slowly releasing more nutrients over time.
  -cheap/free

d.-less polution
  -free of side effects
  -safe to handle or use
  -occurs naturally. Therefore, available at low cost

e.same as Q58. a.

f.Biopesticides, a contraction of 'biological pesticides', include several types of pest management intervention: through predatory, parasitic, or chemical relationships. The term has been associated historically with biological control - and by implication - the manipulation of living organisms. Regulatory positions can be influenced by public perceptions.They are typically created by growing and concentrating naturally occurring organisms and/or their metabolites including bacteria and other microbes, fungi, nematodes, proteins, etc. They are often considered to be important components of integrated pest management (IPM) programmes, and have received much practical attention as substitutes to synthetic chemical plant protection products (PPPs). The Manual of Biocontrol Agents (2009: formerly the Biopesticide Manual) gives a review of the available biological insecticide (and other biology-based control) products.

g.-entomopathogenic fungi
  -beneficial nematodes
  -entomopathogenic viruses
  -weeds
  -rodents