Answer:
2nd one
Explanation:
crop rotations with nitrogen fixing crops such as legumes and some cover crops, can help put nitrogen back into your soil naturally. this makes soil healthy and can increase yields
Answer:The cell membrane is an extremely pliable structure composed primarily of ... A hydrophobic molecule (or region of a molecule) repels and is repelled by water. ... As a result, oxygen will diffuse from the interstitial fluid directly through the lipid ... (a) Facilitated diffusion of substances crossing the cell (plasma) membrane .
Explanation: