Question

Bioremediation of soil and water contaminated with oil spills

Answer 1

ıllıllı ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ ıllıllı

Bioremediation is a waste management technique

that involves the use of organisms to remove or

neutralize pollutants from a contaminated site. Bioremediation is a “treatment

That uses naturally occurring organisms to break

down hazardous substances into less toxic or non

toxic substances”. Technologies can be generally

classified as in situ or ex situ. In situ bioremediation

involves treating the contaminated material at the

site, while ex situ involves the removal of the

contaminated material to be treated elsewhere. Some

examples of bioremediation related technologies are

phytoremediation, bioventing, bioleaching ,

landfarming , bioreactor , composting,

bioaugmentation , rhizofiltration , and biostimulation .

ᴇʜsᴀss ✿◕ ‿ ◕✿

Answer 2

The difference between a UNIQUE constraint and a Primary Key is that per table you may only have one Primary Key but you may define more than one UNIQUE constraints. Primary Key constraints are not nullable. UNIQUE constraints may be nullable. ... A UNIQUE constraint will generate a unique NON-CLUSTERED INDEX.