i have 4 qeastion i need on to answer them plzzzzzzzz and quick i need them nowwww

  • 1 vote

1)impotent of water absortion in the alimentry canal ?

2)magnesium difficency in plant ?

3)eutrophication process?

4)disadvantage of breast feeding?

Posted Sun 22nd May, 2011 @ 19:06 by al000y

3 Answers

  • 1 vote

magnesium deficiency in plants causes yellow leaves as the magnesium is needed in the chlorophyll which makes the leaves green.

Answered Sun 22nd May, 2011 @ 19:13 by Sam
  • 1 vote

Eutrophication

Fertilisers leach into rivers

nitrates cause algae growth

water plants die due to limited sun light

Algea die when nitrates run out

decomposers (bacteria) eat the dead plants and algae

use up the oxygen

water animals die

Answered Sun 22nd May, 2011 @ 19:58 by Pui Pui
  • 1 vote

4)disadvantage of breast feeding:

  • less convenient outside home
  • some women cannot breastfeed

I just remb these 2...

Answered Tue 24th May, 2011 @ 08:16 by saraht